diff --git a/README.md b/README.md
index 66b6acb7a71..a7311882bd0 100644
--- a/README.md
+++ b/README.md
@@ -427,6 +427,7 @@ Set `LITELLM_PROXY_API_BASE` and `LITELLM_PROXY_API_KEY` and every model call th
 | [Watsonx Text (`watsonx_text`)](https://docs.litellm.ai/docs/providers/watsonx) | ✅ | ✅ | ✅ |  |  |  |  |  |  |  |
 | [xAI (`xai`)](https://docs.litellm.ai/docs/providers/xai) | ✅ | ✅ | ✅ |  |  |  |  |  |  |  |
 | [Xinference (`xinference`)](https://docs.litellm.ai/docs/providers/xinference) |  |  |  | ✅ |  |  |  |  |  |  |
+| [ZeroGPU (`zerogpu`)](https://docs.litellm.ai/docs/providers/zerogpu) | ✅ | ✅ | ✅ |  |  |  |  |  |  |  |
 
 [**Read the Docs**](https://docs.litellm.ai/docs/)
 
diff --git a/litellm-rust/crates/core-utils/src/exception_mapping_utils/original.rs b/litellm-rust/crates/core-utils/src/exception_mapping_utils/original.rs
index 6517b093bbd..615d530af19 100644
--- a/litellm-rust/crates/core-utils/src/exception_mapping_utils/original.rs
+++ b/litellm-rust/crates/core-utils/src/exception_mapping_utils/original.rs
@@ -113,6 +113,7 @@ const OPENAI_COMPATIBLE_PROVIDERS: &[&str] = &[
     "meta",
     "cognition",
     "scx-ai",
+    "zerogpu",
 ];
 
 impl ExceptionFamily {
diff --git a/litellm/__init__.py b/litellm/__init__.py
index fc8f6b57254..8dfe5adca1c 100644
--- a/litellm/__init__.py
+++ b/litellm/__init__.py
@@ -681,6 +681,7 @@ moonshot_models: Set = set()
 publicai_models: Set = set()
 darkbloom_models: Set = set()
 openinfer_models: Final[Set[str]] = set()
+zerogpu_models: Final[Set[str]] = set()
 v0_models: Set = set()
 morph_models: Set = set()
 opencode_go_models: Final[set[str]] = set()  # mutable-ok: populated when the shared model catalog loads
@@ -969,6 +970,8 @@ def _populate_provider_model_sets(model_cost_map: Mapping[str, Mapping[str, obje
             darkbloom_models.add(key)
         elif value.get("litellm_provider") == "openinfer":
             openinfer_models.add(key)
+        elif value.get("litellm_provider") == "zerogpu":
+            zerogpu_models.add(key)
         elif value.get("litellm_provider") == "v0":
             v0_models.add(key)
         elif value.get("litellm_provider") == "morph":
@@ -1142,6 +1145,7 @@ model_list = list(
     | publicai_models
     | darkbloom_models
     | openinfer_models
+    | zerogpu_models
     | v0_models
     | morph_models
     | opencode_go_models
@@ -1261,6 +1265,7 @@ def _build_models_by_provider() -> dict:
         "publicai": publicai_models,
         "darkbloom": darkbloom_models,
         "openinfer": openinfer_models,
+        "zerogpu": zerogpu_models,
         "v0": v0_models,
         "morph": morph_models,
         "opencode_go": opencode_go_models,
diff --git a/litellm/completion_extras/litellm_responses_transformation/transformation.py b/litellm/completion_extras/litellm_responses_transformation/transformation.py
index 98322aecf6a..47a3a903d82 100644
--- a/litellm/completion_extras/litellm_responses_transformation/transformation.py
+++ b/litellm/completion_extras/litellm_responses_transformation/transformation.py
@@ -3,7 +3,6 @@ Handler for transforming /chat/completions api requests to litellm.responses req
 """
 
 import json
-import os
 from collections.abc import AsyncIterator, Callable, Iterable, Iterator, Mapping, Sequence
 from itertools import accumulate, chain
 from types import MappingProxyType
@@ -43,8 +42,8 @@ from litellm.responses.sse_output_recovery import (
 )
 from litellm.responses.utils import (
     ResponsesAPIRequestUtils,
-    auto_reasoning_summary,
     normalize_responses_api_stream_options,
+    opt_in_auto_reasoning_summary,
 )
 from litellm.types.llms.openai import (
     ChatCompletionAnnotation,
@@ -1745,19 +1744,11 @@ class LiteLLMResponsesTransformationHandler(CompletionTransformationBridge):
                 **cast(Reasoning, reasoning_effort)  # cast-ok: dict is forwarded verbatim to the provider
             )
 
-        # Check if auto-summary is enabled via flag or environment variable
-        # Priority: litellm.reasoning_auto_summary flag > LITELLM_REASONING_AUTO_SUMMARY env var
-        auto_summary_enabled: Final = (
-            litellm.reasoning_auto_summary or os.getenv("LITELLM_REASONING_AUTO_SUMMARY", "false").lower() == "true"
-        )
-
+        summary: Final = opt_in_auto_reasoning_summary(model, custom_llm_provider)
         return (
-            Reasoning(
-                effort=reasoning_effort,
-                summary="detailed" if model is None else auto_reasoning_summary(model, custom_llm_provider),
-            )
-            if auto_summary_enabled
-            else Reasoning(effort=reasoning_effort)
+            Reasoning(effort=reasoning_effort)
+            if summary is None
+            else Reasoning(effort=reasoning_effort, summary=summary)
         )
 
     _map_reasoning_effort = map_reasoning_effort
diff --git a/litellm/constants.py b/litellm/constants.py
index 2a20e812e68..2b083b03766 100644
--- a/litellm/constants.py
+++ b/litellm/constants.py
@@ -1096,6 +1096,7 @@ openai_compatible_providers: Final[list[str]] = [
     "llamafile",
     "lm_studio",
     "galadriel",
+    "zerogpu",
     "github_copilot",  # GitHub Copilot Chat API
     "chatgpt",  # ChatGPT subscription API
     "novita",
diff --git a/litellm/litellm_core_utils/audio_utils/utils.py b/litellm/litellm_core_utils/audio_utils/utils.py
index dab3e48f91a..640559ac7e2 100644
--- a/litellm/litellm_core_utils/audio_utils/utils.py
+++ b/litellm/litellm_core_utils/audio_utils/utils.py
@@ -2,8 +2,12 @@
 Utils used for litellm.transcription() and litellm.atranscription()
 """
 
+import base64
+import binascii
 import hashlib
+import math
 import os
+from collections.abc import Sequence
 from dataclasses import dataclass
 from typing import Final
 
@@ -331,6 +335,45 @@ def calculate_request_duration(file: FileTypes) -> float | None:
         return None
 
 
+DEFAULT_AUDIO_TOKEN_ESTIMATE: Final = 300
+AUDIO_TOKENS_PER_SECOND: Final = 10
+AUDIO_BYTES_PER_TOKEN: Final = 1600
+_MAX_AUDIO_ESTIMATE_BYTES: Final = 16 * 1024 * 1024
+
+
+def _audio_token_rate(model: str) -> int | None:
+    if model.startswith(
+        ("gemini-", "gemini/gemini-", "vertex_ai/gemini-", "vertex_ai_beta/gemini-", "openrouter/google/gemini-")
+    ):
+        family: Final = model.rsplit("/", 1)[-1]
+        return 25 if family.startswith(("gemini-3-", "gemini-3.")) else 32
+    if model.startswith(("gpt-", "openai/gpt-", "azure/gpt-", "openrouter/openai/gpt-")):
+        return AUDIO_TOKENS_PER_SECOND
+    return None
+
+
+def estimate_audio_tokens(data: str | None, models: Sequence[str] = (), fallback_model: str | None = None) -> int:
+    """Estimate audio tokens from container duration within a bounded decoding budget."""
+    if not data:
+        return DEFAULT_AUDIO_TOKEN_ESTIMATE
+    fallback_estimate: Final = max(len(data) * 3 // 4 // AUDIO_BYTES_PER_TOKEN, DEFAULT_AUDIO_TOKEN_ESTIMATE)
+    padding: Final = 2 if data.endswith("==") else 1 if data.endswith("=") else 0
+    if len(data) * 3 // 4 - padding > _MAX_AUDIO_ESTIMATE_BYTES:
+        return fallback_estimate
+    try:
+        duration: Final = calculate_request_duration(base64.b64decode(data, validate=True))
+    except (ValueError, binascii.Error):
+        return fallback_estimate
+    if duration is None or not math.isfinite(duration) or duration <= 0:
+        return fallback_estimate
+    fallback_rate: Final = _audio_token_rate(fallback_model) if fallback_model is not None else None
+    rate: Final = max(
+        (_audio_token_rate(model) or fallback_rate or AUDIO_TOKENS_PER_SECOND for model in models),
+        default=fallback_rate or AUDIO_TOKENS_PER_SECOND,
+    )
+    return max(1, math.ceil(duration * rate))
+
+
 DEFAULT_SPEECH_MEDIA_TYPE: Final = "audio/mpeg"
 
 
diff --git a/litellm/litellm_core_utils/prompt_templates/common_utils.py b/litellm/litellm_core_utils/prompt_templates/common_utils.py
index 3c06c522dd6..cf6bdc69556 100644
--- a/litellm/litellm_core_utils/prompt_templates/common_utils.py
+++ b/litellm/litellm_core_utils/prompt_templates/common_utils.py
@@ -9,6 +9,7 @@ import json
 import mimetypes
 import re
 from collections.abc import Callable, Iterable, Iterator, Mapping, Sequence
+from dataclasses import dataclass
 from graphlib import CycleError, TopologicalSorter
 from itertools import chain, groupby, islice
 from os import PathLike
@@ -236,6 +237,160 @@ _IMAGE_CONTENT_PART_TYPES: Final = frozenset({"image_url", "input_image", "image
 _IMAGE_SCAN_MAX_DEPTH: Final = 4
 
 
+@dataclass(frozen=True, slots=True)
+class _TPMMediaProjection:
+    content: object
+    media: tuple[Mapping[str, object], ...] = ()
+
+
+def _tpm_image_part(url: str, detail: object = "auto") -> Mapping[str, object]:
+    return {"type": "image_url", "image_url": {"url": url, "detail": detail}}
+
+
+def _tpm_blank_fields(fields: Mapping[str, object], names: tuple[str, ...]) -> Mapping[str, object]:
+    return {key: "" if key in names and isinstance(value, str) else value for key, value in fields.items()}
+
+
+def _tpm_file_media(part: Mapping[str, object]) -> _TPMMediaProjection:
+    from litellm.litellm_core_utils.prompt_templates.factory import parse_mime_type
+
+    nested: Final = part.get("type") == "file"
+    fields: Final = as_str_mapping(part.get("file")) if nested else part
+    if fields is None:
+        return _TPMMediaProjection(part)
+    raw_data: Final = fields.get("file_data")
+    data: Final = raw_data if isinstance(raw_data, str) else ""
+    declared: Final = next(
+        (
+            value
+            for key in ("format", "mime_type", "content_type")
+            if isinstance(value := fields.get(key), str) and value
+        ),
+        "",
+    )
+    mime: Final = (declared or parse_mime_type(data[:256]) or "").split(";", 1)[0].strip().lower()
+    if not mime.startswith(("image/", "audio/")):
+        return _TPMMediaProjection(part)
+    raw_url: Final = fields.get("file_url") or fields.get("file_id")
+    url: Final = data or (raw_url if isinstance(raw_url, str) else "")
+    header_end: Final = data.find(",", 0, 256)
+    encoded: Final = (
+        data[header_end + 1 :]
+        if header_end >= 0 and data[:header_end].endswith(";base64")
+        else ""
+        if data.startswith(("data:", "https://", "http://", "gs://"))
+        else data
+    )
+    media: Final = (
+        _tpm_image_part(
+            url
+            if not data or url.startswith(("data:", "https://", "http://", "gs://"))
+            else f"data:{mime};base64,{url}",
+            fields.get("detail", "auto"),
+        )
+        if mime.startswith("image/")
+        else {"type": "input_audio", "input_audio": {"data": encoded, "format": mime.removeprefix("audio/")}}
+    )
+    projected: Final = _tpm_blank_fields(fields, ("file_data", "file_url"))
+    return _TPMMediaProjection({**part, "file": projected} if nested else projected, (media,))
+
+
+def _tpm_media_leaf(value: object) -> _TPMMediaProjection:
+    part: Final = as_str_mapping(value)
+    if part is None:
+        return _TPMMediaProjection(value)
+    kind: Final = part.get("type")
+    if kind in ("file", "input_file"):
+        return _tpm_file_media(part)
+    if kind == "input_audio":
+        audio: Final = as_str_mapping(part.get("input_audio"))
+        return _TPMMediaProjection(
+            {**part, "input_audio": _tpm_blank_fields(audio, ("data",))} if audio is not None else value,
+            ({"type": "input_audio", "input_audio": part.get("input_audio")},),
+        )
+    if kind in ("image_url", "input_image", "image", "computer_screenshot"):
+        image: Final = as_str_mapping(part.get("image_url"))
+        source: Final = as_str_mapping(part.get("source"))
+        canonical: Final = _tpm_image_part(
+            _image_part_url({**part, "type": "input_image"} if kind == "computer_screenshot" else part) or "",
+            (image or part).get("detail", part.get("detail", "auto")),
+        )
+        projected: Final = (
+            {**part, "image_url": _tpm_blank_fields(image, ("url",))}
+            if image is not None and kind in ("image_url", "input_image", "computer_screenshot")
+            else {**part, "source": _tpm_blank_fields(source, ("data", "url"))}
+            if source is not None and kind == "image" and source.get("type") in ("base64", "url")
+            else _tpm_blank_fields(part, ("image_url", "url"))
+        )
+        return _TPMMediaProjection(projected, (canonical,))
+    return _TPMMediaProjection(value)
+
+
+def _tpm_media_list(value: object, split: Callable[[object], _TPMMediaProjection]) -> _TPMMediaProjection:
+    if not isinstance(value, (list, tuple)):
+        return _TPMMediaProjection(value)
+    parts: Final = cast(Sequence[object], value)  # cast-ok: finite JSON content arrays
+    projected: Final = tuple(map(split, parts))
+    media: Final = tuple(chain.from_iterable(part.media for part in projected))
+    content: Final = tuple(part.content for part in projected)
+    return _TPMMediaProjection(parts if not media else content if isinstance(value, tuple) else list(content), media)
+
+
+def _tpm_replace_field(part: Mapping[str, object], key: str, projection: _TPMMediaProjection) -> _TPMMediaProjection:
+    return _TPMMediaProjection({**part, key: projection.content} if projection.media else part, projection.media)
+
+
+def _tpm_document_media(value: object) -> _TPMMediaProjection:
+    part: Final = as_str_mapping(value)
+    source: Final = as_str_mapping(part.get("source")) if part is not None else None
+    if part is None or part.get("type") != "document" or source is None or source.get("type") != "content":
+        return _tpm_media_leaf(value)
+    content: Final = _tpm_media_list(source.get("content"), _tpm_media_leaf)
+    return _tpm_replace_field(part, "source", _tpm_replace_field(source, "content", content))
+
+
+def _tpm_tool_result_media(value: object) -> _TPMMediaProjection:
+    part: Final = as_str_mapping(value)
+    if part is None or part.get("type") != "tool_result":
+        return _tpm_document_media(value)
+    return _tpm_replace_field(part, "content", _tpm_media_list(part.get("content"), _tpm_document_media))
+
+
+def _tpm_code_output_media(value: object) -> _TPMMediaProjection:
+    part: Final = as_str_mapping(value)
+    url: Final = part.get("url") if part is not None else None
+    if part is None or part.get("type") != "image" or not isinstance(url, str) or not url:
+        return _TPMMediaProjection(value)
+    return _TPMMediaProjection(_tpm_blank_fields(part, ("url",)), (_tpm_image_part(url),))
+
+
+def _tpm_input_media(value: object) -> _TPMMediaProjection:
+    part: Final = as_str_mapping(value)
+    if part is None:
+        return _TPMMediaProjection(value)
+    kind: Final = part.get("type")
+    if kind in ("function_call_output", "custom_tool_call_output"):
+        return _tpm_replace_field(part, "output", _tpm_media_list(part.get("output"), _tpm_tool_result_media))
+    if kind == "computer_call_output":
+        return _tpm_replace_field(part, "output", _tpm_media_leaf(part.get("output")))
+    if kind == "code_interpreter_call":
+        return _tpm_replace_field(part, "outputs", _tpm_media_list(part.get("outputs"), _tpm_code_output_media))
+    result: Final = part.get("result")
+    if kind == "image_generation_call" and isinstance(result, str) and result:
+        return _TPMMediaProjection(
+            _tpm_blank_fields(part, ("result",)),
+            (_tpm_image_part("data:application/octet-stream;base64," + result),),
+        )
+    if kind == "message" or (kind is None and isinstance(part.get("role"), str)):
+        return _tpm_replace_field(part, "content", _tpm_media_list(part.get("content"), _tpm_tool_result_media))
+    return _tpm_tool_result_media(value)
+
+
+def split_media_for_tpm(value: object) -> tuple[object, tuple[Mapping[str, object], ...]]:
+    projection: Final = _tpm_media_list(value, _tpm_input_media)
+    return projection.content, projection.media
+
+
 def _content_parts_contain_image(parts: Sequence[object]) -> bool:
     """Depth-bounded frontier walk over nested content lists, iterative because the repo bans
     recursion; an Anthropic tool_result nests its image parts exactly one level down."""
diff --git a/litellm/litellm_core_utils/token_counter.py b/litellm/litellm_core_utils/token_counter.py
index 6d50e4b065e..f42e4eae08f 100644
--- a/litellm/litellm_core_utils/token_counter.py
+++ b/litellm/litellm_core_utils/token_counter.py
@@ -3,9 +3,12 @@
 import base64
 import io
 import math
+import re
 import struct
+from bisect import bisect_right
 from collections.abc import Awaitable, Callable, Iterable, Mapping, Sequence
 from itertools import accumulate
+from types import MappingProxyType
 from typing import TYPE_CHECKING, Final, Literal, cast
 
 import anyio
@@ -35,6 +38,7 @@ from litellm.constants import (
     TOKEN_COUNTER_MAX_EXACT_CHARS,
 )
 from litellm.litellm_core_utils.asyncify import asyncify
+from litellm.litellm_core_utils.core_helpers import as_str_mapping
 from litellm.litellm_core_utils.prompt_templates.chat_template_tools import (
     ChatTemplateToolSection,
     chat_template_tool_section,
@@ -188,22 +192,23 @@ def resize_image_high_res(
 
 # Test the function with the given example
 def calculate_tiles_needed(
-    resized_width,
-    resized_height,
-    tile_width=MAX_TILE_WIDTH,
-    tile_height=MAX_TILE_HEIGHT,
-):
+    resized_width: int,
+    resized_height: int,
+    tile_width: int = MAX_TILE_WIDTH,
+    tile_height: int = MAX_TILE_HEIGHT,
+) -> int:
     tiles_across: Final = (resized_width + tile_width - 1) // tile_width
     tiles_down: Final = (resized_height + tile_height - 1) // tile_height
     total_tiles: Final = tiles_across * tiles_down
     return total_tiles
 
 
-def high_detail_image_token_upper_bound(base_tokens: int = 85) -> int:
+def high_detail_image_token_upper_bound(base_tokens: int = 85, tile_tokens: int | None = None) -> int:
     largest_tile_count: Final = calculate_tiles_needed(
         MAX_LONG_SIDE_FOR_IMAGE_HIGH_RES, MAX_SHORT_SIDE_FOR_IMAGE_HIGH_RES
     )
-    return base_tokens + (base_tokens * 2) * largest_tile_count
+    per_tile: Final = base_tokens * 2 if tile_tokens is None else tile_tokens
+    return base_tokens + per_tile * largest_tile_count
 
 
 def _unpack_ints(fmt: str, buffer: bytes) -> tuple[int, ...]:
@@ -381,6 +386,219 @@ def calculate_img_tokens(
     return total_tokens
 
 
+_IMAGE_HEADER_BASE64_CHARS: Final = 65_536
+_MAX_IMAGE_PATCHES: Final = 30_000
+_ANTHROPIC_IMAGE_LIMITS: Final = MappingProxyType(
+    {"claude-standard": (ANTHROPIC_IMAGE_MAX_LONG_EDGE_PX, 1568), "claude-high": (2576, 4784)}
+)
+_TILE_IMAGE_TOKEN_COSTS: Final = MappingProxyType(
+    {
+        "gpt-4o": (85, 170),
+        "gpt-4.1": (85, 170),
+        "gpt-4o-mini": (2833, 5667),
+        "gpt-5": (70, 140),
+        "gpt-5.1": (70, 140),
+        "o1": (75, 150),
+        "o1-pro": (75, 150),
+        "o3": (75, 150),
+    }
+)
+_PATCH_IMAGE_MULTIPLIERS: Final = MappingProxyType(
+    {
+        "gpt-6-astra": 1.2,
+        "gpt-5.6-sol": 1.2,
+        "gpt-5.6-terra": 1.2,
+        "gpt-5.6-luna": 1.2,
+        "gpt-5.5": 1.2,
+        "gpt-5.4": 1.2,
+        "gpt-5.4-mini": 1.2,
+        "gpt-5.4-nano": 1.2,
+        "gpt-5.2": 1.2,
+        "gpt-4.1-mini": 1.62,
+    }
+)
+
+
+def _inline_image_dimensions(data: str) -> tuple[int, int] | None:
+    separator: Final = data.find(",", 0, 256)
+    if not data.startswith("data:") or separator < 0 or not data[:separator].endswith(";base64"):
+        return None
+    encoded_header: Final = data[separator + 1 : separator + 1 + _IMAGE_HEADER_BASE64_CHARS]
+    try:
+        header: Final = base64.b64decode(encoded_header, validate=True)
+        image_type: Final = get_image_type(header)
+        if image_type not in ("png", "gif", "jpeg", "webp"):
+            return None
+        if image_type == "webp" and header[12:16] not in (b"VP8X", b"VP8 ", b"VP8L"):
+            return None
+        dimensions: Final = _image_dimensions_from_bytes(header)
+    except (ValueError, TypeError, struct.error):
+        return None
+    width, height = dimensions
+    return (width, height) if width > 0 and height > 0 else None
+
+
+def _patch_image_limits(model: str, detail: str) -> tuple[int, int | None] | None:
+    if model in ("gpt-5.2", "gpt-4.1-mini"):
+        return None if detail == "original" else (2048, 6144)
+    original_default: Final = model in ("gpt-6-astra", "gpt-5.6-sol", "gpt-5.6-terra", "gpt-5.6-luna", "gpt-5.5")
+    effective_detail: Final = ("original" if original_default else "high") if detail == "auto" else detail
+    if effective_detail == "low":
+        return (2048, 6144) if model in ("gpt-5.4", "gpt-5.4-mini", "gpt-5.4-nano") else (512, None)
+    if effective_detail == "high":
+        return (65_535 if model == "gpt-6-astra" else 2048, 2500)
+    return (
+        (65_535, None) if model in ("gpt-6-astra", "gpt-5.6-sol", "gpt-5.6-terra", "gpt-5.6-luna") else (6000, 10_000)
+    )
+
+
+def _image_patch_count(width: int, height: int, max_dimension: int, budget: int | None) -> int:
+    dimension_scale: Final = min(1.0, max_dimension / max(width, height))
+    fitted_width: Final = max(1, round(width * dimension_scale))
+    fitted_height: Final = max(1, round(height * dimension_scale))
+    patches: Final = math.ceil(fitted_width / 32) * math.ceil(fitted_height / 32)
+    if budget is None or patches <= budget:
+        return patches
+    shrink: Final = math.sqrt(32**2 * budget / (fitted_width * fitted_height))
+    width_patches: Final = fitted_width * shrink / 32
+    height_patches: Final = fitted_height * shrink / 32
+    aligned_shrink: Final = shrink * min(
+        math.floor(width_patches) / width_patches, math.floor(height_patches) / height_patches
+    )
+    resized_width: Final = max(1, math.floor(fitted_width * aligned_shrink))
+    resized_height: Final = max(1, math.floor(fitted_height * aligned_shrink))
+    return math.ceil(resized_width / 32) * math.ceil(resized_height / 32)
+
+
+def _image_policy_model_name(model: str) -> str | None:
+    provider, separator, provider_model = model.partition("/")
+    if not separator:
+        return model
+    if provider == "openai":
+        return provider_model
+    if provider == "openrouter":
+        return provider_model.removeprefix("openai/") if provider_model.startswith("openai/") else None
+    if provider not in ("azure", "azure_ai"):
+        return None
+    catalog_entry: Final = as_str_mapping(
+        cast(  # cast-ok: read-only view of the legacy string-keyed registry; as_str_mapping checks the entry
+            Mapping[str, object], litellm.model_cost
+        ).get(model)
+    )
+    if catalog_entry is not None and catalog_entry.get("litellm_provider") in ("azure", "azure_ai"):
+        return provider_model.rsplit("/", 1)[-1]
+    return provider_model.removeprefix("responses/").removeprefix("o_series/").removeprefix("openai/")
+
+
+def _anthropic_image_family(model: str) -> str | None:
+    from litellm.utils import get_potential_model_names
+
+    provider, separator, _ = model.partition("/")
+    if separator and provider not in (
+        "anthropic",
+        "bedrock",
+        "bedrock_converse",
+        "bedrock_mantle",
+        "vertex_ai",
+        "vertex_ai_beta",
+        "azure_ai",
+        "openrouter",
+    ):
+        return None
+    candidates: Final = get_potential_model_names(model, provider if separator else "anthropic")
+    catalog: Final = cast(Mapping[str, object], litellm.model_cost)  # cast-ok: read-only view of the legacy registry
+    for candidate in dict.fromkeys(candidates.values()):
+        if not isinstance(candidate, str):
+            continue
+        if (entry := as_str_mapping(catalog.get(candidate))) is None or entry.get("supports_vision") is not True:
+            continue
+        if (
+            version := re.search(
+                r"(?:^|[./])claude-(?:(?:haiku|sonnet|opus)-)?(\d+)(?:[-.](\d{1,2})(?!\d))?", candidate
+            )
+        ) is None:
+            continue
+        major, minor = int(version[1]), int(version[2] or 0)
+        return "claude-high" if (major, minor) >= (4, 7) else "claude-standard"
+    return None
+
+
+def _anthropic_image_tokens(dimensions: tuple[int, int] | None, limits: tuple[int, int]) -> int:
+    max_edge, token_budget = limits
+    if dimensions is None:
+        return token_budget
+    long_edge, short_edge = max(dimensions), min(dimensions)
+    aspect_ratio: Final = long_edge / short_edge
+
+    def tokens_at_edge(edge: int) -> int:
+        return math.ceil(edge / 28) * math.ceil(max(round(edge / aspect_ratio), 1) / 28)
+
+    fitted_edge: Final = bisect_right(range(1, min(long_edge, max_edge) + 1), token_budget, key=tokens_at_edge)
+    return tokens_at_edge(max(fitted_edge, 1))
+
+
+def _image_model_family(model: str) -> str | None:
+    provider_model: Final = _image_policy_model_name(model)
+    if provider_model is None:
+        return _anthropic_image_family(model)
+    family: Final = re.sub(r"-\d{4}-\d{2}-\d{2}$", "", provider_model)
+    canonical: Final = litellm.azure_llms.get(f"azure/{family}", family) if model.startswith("azure/") else family
+    return (
+        canonical
+        if canonical in _TILE_IMAGE_TOKEN_COSTS or canonical in _PATCH_IMAGE_MULTIPLIERS
+        else _anthropic_image_family(model)
+    )
+
+
+def _image_policy_tokens(family: str | None, dimensions: tuple[int, int] | None, detail: str) -> int:
+    if family is None:
+        return DEFAULT_IMAGE_TOKEN_COUNT
+    anthropic_limits: Final = _ANTHROPIC_IMAGE_LIMITS.get(family)
+    if anthropic_limits is not None:
+        return _anthropic_image_tokens(dimensions, anthropic_limits)
+    tile_costs: Final = _TILE_IMAGE_TOKEN_COSTS.get(family)
+    multiplier: Final = _PATCH_IMAGE_MULTIPLIERS.get(family)
+    if tile_costs is not None:
+        base_tokens, tile_tokens = tile_costs
+        if detail == "original":
+            return DEFAULT_IMAGE_TOKEN_COUNT
+        if detail == "low":
+            return base_tokens
+        if dimensions is None:
+            return high_detail_image_token_upper_bound(base_tokens, tile_tokens)
+        width, height = dimensions
+        scale: Final = min(1.0, 2048 / max(width, height), 768 / min(width, height))
+        tiles: Final = calculate_tiles_needed(max(1, math.floor(width * scale)), max(1, math.floor(height * scale)))
+        return base_tokens + tiles * tile_tokens
+    limits: Final = _patch_image_limits(family, detail)
+    if limits is None or multiplier is None:
+        return DEFAULT_IMAGE_TOKEN_COUNT
+    max_dimension, patch_budget = limits
+    patches: Final = (
+        min(math.ceil(max_dimension / 32) ** 2, patch_budget if patch_budget is not None else _MAX_IMAGE_PATCHES)
+        if dimensions is None
+        else _image_patch_count(*dimensions, max_dimension, patch_budget)
+    )
+    return math.ceil(patches * multiplier)
+
+
+def estimate_image_tokens(
+    model: str | Sequence[str], data: str, detail: str = "auto", *, fallback_model: str | None = None
+) -> int:
+    """Estimate image policies from at most 48 KiB of inline headers, without fetching media."""
+    if detail not in ("low", "high", "auto", "original"):
+        return DEFAULT_IMAGE_TOKEN_COUNT
+    models: Final = (model,) if isinstance(model, str) else model
+    fallback_family: Final = _image_model_family(fallback_model) if fallback_model is not None else None
+    families: Final = tuple(
+        dict.fromkeys(_image_model_family(candidate) or fallback_family for candidate in models or ("",))
+    )
+    if all(family is None for family in families):
+        return DEFAULT_IMAGE_TOKEN_COUNT
+    dimensions: Final = _inline_image_dimensions(data)
+    return max(_image_policy_tokens(family, dimensions, detail) for family in families)
+
+
 TokenCounterFunction = Callable[[str], int]
 """
 Type for a function that counts tokens in a string.
diff --git a/litellm/llms/openai_like/providers.json b/litellm/llms/openai_like/providers.json
index 0034ed2b9d4..2b71707239b 100644
--- a/litellm/llms/openai_like/providers.json
+++ b/litellm/llms/openai_like/providers.json
@@ -58,6 +58,12 @@
       "max_completion_tokens": "max_tokens"
     }
   },
+  "zerogpu": {
+    "base_url": "https://api.zerogpu.ai/v1",
+    "api_key_env": "ZEROGPU_API_KEY",
+    "api_base_env": "ZEROGPU_API_BASE",
+    "supported_endpoints": ["/v1/chat/completions", "/v1/responses"]
+  },
   "chutes": {
     "base_url": "https://llm.chutes.ai/v1/",
     "api_key_env": "CHUTES_API_KEY",
diff --git a/litellm/main.py b/litellm/main.py
index 75bd4431120..41c4302499e 100644
--- a/litellm/main.py
+++ b/litellm/main.py
@@ -6124,7 +6124,18 @@ def completion(
 
             optional_params, rs_val = strip_reasoning_summary_aliases_from_optional_params(optional_params)
 
-            if isinstance(resolved_reasoning_effort, dict) and "summary" in resolved_reasoning_effort:
+            if custom_llm_provider == "openai" and isinstance(resolved_reasoning_effort, dict):
+                from litellm.responses.utils import openai_bridge_reasoning
+
+                optional_params["reasoning_effort"] = openai_bridge_reasoning(
+                    requested=resolved_reasoning_effort,
+                    effort_kept="reasoning_effort" in optional_params,
+                    summary_alias=rs_val,
+                    model=model,
+                    drop_params=drop_unsupported_reasoning,
+                    additional_drop_params=routing_kwargs.get("additional_drop_params"),
+                )
+            elif isinstance(resolved_reasoning_effort, dict) and "summary" in resolved_reasoning_effort:
                 optional_params["reasoning_effort"] = resolved_reasoning_effort
             elif rs_val is not None:
                 eff: Final = optional_params.get("reasoning_effort", resolved_reasoning_effort)
diff --git a/litellm/model_prices_and_context_window_backup.json b/litellm/model_prices_and_context_window_backup.json
index 7199a075612..4e022e1a4b2 100644
--- a/litellm/model_prices_and_context_window_backup.json
+++ b/litellm/model_prices_and_context_window_backup.json
@@ -35598,6 +35598,13 @@
         "output_cost_per_token_batches": 5e-06,
         "output_cost_per_token_flex": 5e-06,
         "output_cost_per_token_priority": 2e-05,
+        "reasoning_contexts": [
+            "auto",
+            "current_turn"
+        ],
+        "reasoning_modes": [
+            "standard"
+        ],
         "search_context_cost_per_query": {
             "search_context_size_high": 0.01,
             "search_context_size_low": 0.01,
@@ -35675,6 +35682,13 @@
         "mode": "chat",
         "output_cost_per_token": 1e-05,
         "output_cost_per_token_priority": 2e-05,
+        "reasoning_contexts": [
+            "auto",
+            "current_turn"
+        ],
+        "reasoning_modes": [
+            "standard"
+        ],
         "search_context_cost_per_query": {
             "search_context_size_high": 0.01,
             "search_context_size_low": 0.01,
@@ -35851,6 +35865,13 @@
         "mode": "chat",
         "output_cost_per_token": 1e-05,
         "output_cost_per_token_priority": 2e-05,
+        "reasoning_contexts": [
+            "auto",
+            "current_turn"
+        ],
+        "reasoning_modes": [
+            "standard"
+        ],
         "search_context_cost_per_query": {
             "search_context_size_high": 0.01,
             "search_context_size_low": 0.01,
@@ -35902,6 +35923,13 @@
         "mode": "chat",
         "output_cost_per_token": 1.4e-05,
         "output_cost_per_token_priority": 2.8e-05,
+        "reasoning_contexts": [
+            "auto",
+            "current_turn"
+        ],
+        "reasoning_modes": [
+            "standard"
+        ],
         "search_context_cost_per_query": {
             "search_context_size_high": 0.01,
             "search_context_size_low": 0.01,
@@ -36017,6 +36045,13 @@
         "mode": "chat",
         "output_cost_per_token": 1.4e-05,
         "output_cost_per_token_priority": 2.8e-05,
+        "reasoning_contexts": [
+            "auto",
+            "current_turn"
+        ],
+        "reasoning_modes": [
+            "standard"
+        ],
         "search_context_cost_per_query": {
             "search_context_size_high": 0.01,
             "search_context_size_low": 0.01,
@@ -36066,6 +36101,13 @@
         "mode": "responses",
         "output_cost_per_token": 0.000168,
         "output_cost_per_token_batches": 8.4e-05,
+        "reasoning_contexts": [
+            "auto",
+            "current_turn"
+        ],
+        "reasoning_modes": [
+            "pro"
+        ],
         "search_context_cost_per_query": {
             "search_context_size_high": 0.01,
             "search_context_size_low": 0.01,
@@ -36107,6 +36149,13 @@
         "mode": "responses",
         "output_cost_per_token": 0.000168,
         "output_cost_per_token_batches": 8.4e-05,
+        "reasoning_contexts": [
+            "auto",
+            "current_turn"
+        ],
+        "reasoning_modes": [
+            "pro"
+        ],
         "search_context_cost_per_query": {
             "search_context_size_high": 0.01,
             "search_context_size_low": 0.01,
@@ -36194,6 +36243,15 @@
         "output_cost_per_token_flex": 2.5e-05,
         "output_cost_per_token_priority": 0.0001,
         "output_cost_per_token_ultrafast": 0.0003,
+        "reasoning_contexts": [
+            "auto",
+            "current_turn",
+            "all_turns"
+        ],
+        "reasoning_modes": [
+            "standard",
+            "pro"
+        ],
         "regional_processing_uplift_multiplier_eu": 1.1,
         "regional_processing_uplift_multiplier_us": 1.1,
         "search_context_cost_per_query": {
@@ -36278,6 +36336,15 @@
         "output_cost_per_token_above_272k_tokens_batches": 7.5e-06,
         "output_cost_per_token_flex": 5e-06,
         "output_cost_per_token_priority": 2e-05,
+        "reasoning_contexts": [
+            "auto",
+            "current_turn",
+            "all_turns"
+        ],
+        "reasoning_modes": [
+            "standard",
+            "pro"
+        ],
         "regional_processing_uplift_multiplier_eu": 1.1,
         "regional_processing_uplift_multiplier_us": 1.1,
         "search_context_cost_per_query": {
@@ -36370,6 +36437,15 @@
         "output_cost_per_token_above_272k_tokens_batches": 3.75e-07,
         "output_cost_per_token_flex": 2.5e-07,
         "output_cost_per_token_priority": 1e-06,
+        "reasoning_contexts": [
+            "auto",
+            "current_turn",
+            "all_turns"
+        ],
+        "reasoning_modes": [
+            "standard",
+            "pro"
+        ],
         "regional_processing_uplift_multiplier_eu": 1.1,
         "regional_processing_uplift_multiplier_us": 1.1,
         "search_context_cost_per_query": {
@@ -36453,6 +36529,15 @@
         "output_cost_per_token_above_272k_tokens_batches": 1.5e-05,
         "output_cost_per_token_flex": 1e-05,
         "output_cost_per_token_priority": 4e-05,
+        "reasoning_contexts": [
+            "auto",
+            "current_turn",
+            "all_turns"
+        ],
+        "reasoning_modes": [
+            "standard",
+            "pro"
+        ],
         "regional_processing_uplift_multiplier_eu": 1.1,
         "regional_processing_uplift_multiplier_us": 1.1,
         "search_context_cost_per_query": {
@@ -36534,6 +36619,15 @@
         "output_cost_per_token_above_272k_tokens_batches": 1.5e-05,
         "output_cost_per_token_flex": 1e-05,
         "output_cost_per_token_priority": 4e-05,
+        "reasoning_contexts": [
+            "auto",
+            "current_turn",
+            "all_turns"
+        ],
+        "reasoning_modes": [
+            "standard",
+            "pro"
+        ],
         "regional_processing_uplift_multiplier_eu": 1.1,
         "regional_processing_uplift_multiplier_us": 1.1,
         "search_context_cost_per_query": {
@@ -36617,6 +36711,15 @@
         "output_cost_per_token_above_272k_tokens_batches": 9e-06,
         "output_cost_per_token_flex": 6e-06,
         "output_cost_per_token_priority": 2.4e-05,
+        "reasoning_contexts": [
+            "auto",
+            "current_turn",
+            "all_turns"
+        ],
+        "reasoning_modes": [
+            "standard",
+            "pro"
+        ],
         "regional_processing_uplift_multiplier_eu": 1.1,
         "regional_processing_uplift_multiplier_us": 1.1,
         "search_context_cost_per_query": {
@@ -36699,6 +36802,15 @@
         "output_cost_per_token_above_272k_tokens_batches": 9e-07,
         "output_cost_per_token_flex": 6e-07,
         "output_cost_per_token_priority": 2.4e-06,
+        "reasoning_contexts": [
+            "auto",
+            "current_turn",
+            "all_turns"
+        ],
+        "reasoning_modes": [
+            "standard",
+            "pro"
+        ],
         "regional_processing_uplift_multiplier_eu": 1.1,
         "regional_processing_uplift_multiplier_us": 1.1,
         "search_context_cost_per_query": {
@@ -36936,6 +37048,14 @@
         "reasoning_effort_levels": [
             "medium"
         ],
+        "reasoning_contexts": [
+            "auto",
+            "current_turn",
+            "all_turns"
+        ],
+        "reasoning_modes": [
+            "standard"
+        ],
         "source": "https://developers.openai.com/api/docs/pricing",
         "supported_endpoints": [
             "/v1/chat/completions",
@@ -36983,6 +37103,14 @@
         "output_cost_per_token_batches": 1.5e-05,
         "output_cost_per_token_above_272k_tokens_batches": 2.25e-05,
         "output_cost_per_token_priority": 7.5e-05,
+        "reasoning_contexts": [
+            "auto",
+            "current_turn",
+            "all_turns"
+        ],
+        "reasoning_modes": [
+            "standard"
+        ],
         "regional_processing_uplift_multiplier_eu": 1.1,
         "regional_processing_uplift_multiplier_us": 1.1,
         "search_context_cost_per_query": {
@@ -37045,6 +37173,14 @@
         "output_cost_per_token_batches": 1.5e-05,
         "output_cost_per_token_above_272k_tokens_batches": 2.25e-05,
         "output_cost_per_token_priority": 7.5e-05,
+        "reasoning_contexts": [
+            "auto",
+            "current_turn",
+            "all_turns"
+        ],
+        "reasoning_modes": [
+            "standard"
+        ],
         "regional_processing_uplift_multiplier_eu": 1.1,
         "regional_processing_uplift_multiplier_us": 1.1,
         "search_context_cost_per_query": {
@@ -37099,6 +37235,14 @@
         "output_cost_per_token_flex": 9e-05,
         "output_cost_per_token_batches": 9e-05,
         "output_cost_per_token_above_272k_tokens_batches": 0.000135,
+        "reasoning_contexts": [
+            "auto",
+            "current_turn",
+            "all_turns"
+        ],
+        "reasoning_modes": [
+            "pro"
+        ],
         "regional_processing_uplift_multiplier_eu": 1.1,
         "regional_processing_uplift_multiplier_us": 1.1,
         "search_context_cost_per_query": {
@@ -37150,6 +37294,14 @@
         "output_cost_per_token_flex": 9e-05,
         "output_cost_per_token_batches": 9e-05,
         "output_cost_per_token_above_272k_tokens_batches": 0.000135,
+        "reasoning_contexts": [
+            "auto",
+            "current_turn",
+            "all_turns"
+        ],
+        "reasoning_modes": [
+            "pro"
+        ],
         "regional_processing_uplift_multiplier_eu": 1.1,
         "regional_processing_uplift_multiplier_us": 1.1,
         "search_context_cost_per_query": {
@@ -37209,6 +37361,14 @@
         "output_cost_per_token_batches": 7.5e-06,
         "output_cost_per_token_above_272k_tokens_batches": 1.125e-05,
         "output_cost_per_token_priority": 3e-05,
+        "reasoning_contexts": [
+            "auto",
+            "current_turn",
+            "all_turns"
+        ],
+        "reasoning_modes": [
+            "standard"
+        ],
         "regional_processing_uplift_multiplier_eu": 1.1,
         "regional_processing_uplift_multiplier_us": 1.1,
         "supported_endpoints": [
@@ -37266,6 +37426,14 @@
         "output_cost_per_token_batches": 7.5e-06,
         "output_cost_per_token_above_272k_tokens_batches": 1.125e-05,
         "output_cost_per_token_priority": 3e-05,
+        "reasoning_contexts": [
+            "auto",
+            "current_turn",
+            "all_turns"
+        ],
+        "reasoning_modes": [
+            "standard"
+        ],
         "regional_processing_uplift_multiplier_eu": 1.1,
         "regional_processing_uplift_multiplier_us": 1.1,
         "supported_endpoints": [
@@ -37315,6 +37483,14 @@
         "output_cost_per_token_flex": 9e-05,
         "output_cost_per_token_batches": 9e-05,
         "output_cost_per_token_above_272k_tokens_batches": 0.000135,
+        "reasoning_contexts": [
+            "auto",
+            "current_turn",
+            "all_turns"
+        ],
+        "reasoning_modes": [
+            "pro"
+        ],
         "regional_processing_uplift_multiplier_eu": 1.1,
         "regional_processing_uplift_multiplier_us": 1.1,
         "search_context_cost_per_query": {
@@ -37367,6 +37543,14 @@
         "output_cost_per_token_flex": 9e-05,
         "output_cost_per_token_batches": 9e-05,
         "output_cost_per_token_above_272k_tokens_batches": 0.000135,
+        "reasoning_contexts": [
+            "auto",
+            "current_turn",
+            "all_turns"
+        ],
+        "reasoning_modes": [
+            "pro"
+        ],
         "regional_processing_uplift_multiplier_eu": 1.1,
         "regional_processing_uplift_multiplier_us": 1.1,
         "search_context_cost_per_query": {
@@ -37421,6 +37605,14 @@
         "output_cost_per_token_flex": 2.25e-06,
         "output_cost_per_token_batches": 2.25e-06,
         "output_cost_per_token_priority": 9e-06,
+        "reasoning_contexts": [
+            "auto",
+            "current_turn",
+            "all_turns"
+        ],
+        "reasoning_modes": [
+            "standard"
+        ],
         "regional_processing_uplift_multiplier_eu": 1.1,
         "regional_processing_uplift_multiplier_us": 1.1,
         "search_context_cost_per_query": {
@@ -37475,6 +37667,14 @@
         "output_cost_per_token_flex": 2.25e-06,
         "output_cost_per_token_batches": 2.25e-06,
         "output_cost_per_token_priority": 9e-06,
+        "reasoning_contexts": [
+            "auto",
+            "current_turn",
+            "all_turns"
+        ],
+        "reasoning_modes": [
+            "standard"
+        ],
         "regional_processing_uplift_multiplier_eu": 1.1,
         "regional_processing_uplift_multiplier_us": 1.1,
         "search_context_cost_per_query": {
@@ -37526,6 +37726,14 @@
         "output_cost_per_token": 1.25e-06,
         "output_cost_per_token_flex": 6.25e-07,
         "output_cost_per_token_batches": 6.25e-07,
+        "reasoning_contexts": [
+            "auto",
+            "current_turn",
+            "all_turns"
+        ],
+        "reasoning_modes": [
+            "standard"
+        ],
         "regional_processing_uplift_multiplier_eu": 1.1,
         "regional_processing_uplift_multiplier_us": 1.1,
         "search_context_cost_per_query": {
@@ -37578,6 +37786,14 @@
         "output_cost_per_token": 1.25e-06,
         "output_cost_per_token_flex": 6.25e-07,
         "output_cost_per_token_batches": 6.25e-07,
+        "reasoning_contexts": [
+            "auto",
+            "current_turn",
+            "all_turns"
+        ],
+        "reasoning_modes": [
+            "standard"
+        ],
         "regional_processing_uplift_multiplier_eu": 1.1,
         "regional_processing_uplift_multiplier_us": 1.1,
         "search_context_cost_per_query": {
@@ -37624,6 +37840,13 @@
         "mode": "responses",
         "output_cost_per_token": 0.00012,
         "output_cost_per_token_batches": 6e-05,
+        "reasoning_contexts": [
+            "auto",
+            "current_turn"
+        ],
+        "reasoning_modes": [
+            "pro"
+        ],
         "search_context_cost_per_query": {
             "search_context_size_high": 0.01,
             "search_context_size_low": 0.01,
@@ -37666,6 +37889,13 @@
         "mode": "responses",
         "output_cost_per_token": 0.00012,
         "output_cost_per_token_batches": 6e-05,
+        "reasoning_contexts": [
+            "auto",
+            "current_turn"
+        ],
+        "reasoning_modes": [
+            "pro"
+        ],
         "search_context_cost_per_query": {
             "search_context_size_high": 0.01,
             "search_context_size_low": 0.01,
@@ -37716,6 +37946,13 @@
         "output_cost_per_token_batches": 5e-06,
         "output_cost_per_token_flex": 5e-06,
         "output_cost_per_token_priority": 2e-05,
+        "reasoning_contexts": [
+            "auto",
+            "current_turn"
+        ],
+        "reasoning_modes": [
+            "standard"
+        ],
         "search_context_cost_per_query": {
             "search_context_size_high": 0.01,
             "search_context_size_low": 0.01,
@@ -37826,6 +38063,13 @@
         "mode": "responses",
         "output_cost_per_token": 1.4e-05,
         "output_cost_per_token_priority": 2.8e-05,
+        "reasoning_contexts": [
+            "auto",
+            "current_turn"
+        ],
+        "reasoning_modes": [
+            "standard"
+        ],
         "search_context_cost_per_query": {
             "search_context_size_high": 0.01,
             "search_context_size_low": 0.01,
@@ -37908,6 +38152,13 @@
         "output_cost_per_token_batches": 1e-06,
         "output_cost_per_token_flex": 1e-06,
         "output_cost_per_token_priority": 3.6e-06,
+        "reasoning_contexts": [
+            "auto",
+            "current_turn"
+        ],
+        "reasoning_modes": [
+            "standard"
+        ],
         "search_context_cost_per_query": {
             "search_context_size_high": 0.01,
             "search_context_size_low": 0.01,
@@ -37959,6 +38210,13 @@
         "output_cost_per_token_batches": 1e-06,
         "output_cost_per_token_flex": 1e-06,
         "output_cost_per_token_priority": 3.6e-06,
+        "reasoning_contexts": [
+            "auto",
+            "current_turn"
+        ],
+        "reasoning_modes": [
+            "standard"
+        ],
         "search_context_cost_per_query": {
             "search_context_size_high": 0.01,
             "search_context_size_low": 0.01,
@@ -38007,6 +38265,13 @@
         "output_cost_per_token": 4e-07,
         "output_cost_per_token_batches": 2e-07,
         "output_cost_per_token_flex": 2e-07,
+        "reasoning_contexts": [
+            "auto",
+            "current_turn"
+        ],
+        "reasoning_modes": [
+            "standard"
+        ],
         "search_context_cost_per_query": {
             "search_context_size_high": 0.01,
             "search_context_size_low": 0.01,
@@ -38055,6 +38320,13 @@
         "output_cost_per_token": 4e-07,
         "output_cost_per_token_batches": 2e-07,
         "output_cost_per_token_flex": 2e-07,
+        "reasoning_contexts": [
+            "auto",
+            "current_turn"
+        ],
+        "reasoning_modes": [
+            "standard"
+        ],
         "search_context_cost_per_query": {
             "search_context_size_high": 0.01,
             "search_context_size_low": 0.01,
@@ -43821,6 +44093,13 @@
         "output_cost_per_token_batches": 4e-06,
         "output_cost_per_token_flex": 4e-06,
         "output_cost_per_token_priority": 1.4e-05,
+        "reasoning_contexts": [
+            "auto",
+            "current_turn"
+        ],
+        "reasoning_modes": [
+            "standard"
+        ],
         "search_context_cost_per_query": {
             "search_context_size_high": 0.01,
             "search_context_size_low": 0.01,
@@ -43929,6 +44208,13 @@
         "output_cost_per_token_batches": 4e-06,
         "output_cost_per_token_flex": 4e-06,
         "output_cost_per_token_priority": 1.4e-05,
+        "reasoning_contexts": [
+            "auto",
+            "current_turn"
+        ],
+        "reasoning_modes": [
+            "standard"
+        ],
         "search_context_cost_per_query": {
             "search_context_size_high": 0.01,
             "search_context_size_low": 0.01,
@@ -44008,6 +44294,13 @@
         "mode": "responses",
         "output_cost_per_token": 8e-05,
         "output_cost_per_token_batches": 4e-05,
+        "reasoning_contexts": [
+            "auto",
+            "current_turn"
+        ],
+        "reasoning_modes": [
+            "pro"
+        ],
         "search_context_cost_per_query": {
             "search_context_size_high": 0.01,
             "search_context_size_low": 0.01,
@@ -44045,6 +44338,13 @@
         "mode": "responses",
         "output_cost_per_token": 8e-05,
         "output_cost_per_token_batches": 4e-05,
+        "reasoning_contexts": [
+            "auto",
+            "current_turn"
+        ],
+        "reasoning_modes": [
+            "pro"
+        ],
         "search_context_cost_per_query": {
             "search_context_size_high": 0.01,
             "search_context_size_low": 0.01,
@@ -65863,6 +66163,180 @@
         "supports_reasoning": true,
         "supports_tool_choice": true
     },
+    "zerogpu/deepseek-v4.1-flash": {
+        "cache_read_input_token_cost": 3e-09,
+        "input_cost_per_token": 3e-07,
+        "litellm_provider": "zerogpu",
+        "max_input_tokens": 1048576,
+        "max_output_tokens": 65536,
+        "mode": "chat",
+        "output_cost_per_token": 1.2e-06,
+        "source": "https://docs.zerogpu.ai/docs/model-catalog",
+        "supports_function_calling": true,
+        "supports_prompt_caching": true,
+        "supports_reasoning": true,
+        "supports_response_schema": true,
+        "supports_tool_choice": true
+    },
+    "zerogpu/glm-5.3-flash": {
+        "cache_read_input_token_cost": 1.5e-08,
+        "input_cost_per_token": 1e-07,
+        "litellm_provider": "zerogpu",
+        "max_input_tokens": 1048576,
+        "max_output_tokens": 32768,
+        "mode": "chat",
+        "output_cost_per_token": 3.5e-07,
+        "source": "https://docs.zerogpu.ai/docs/model-catalog",
+        "supports_function_calling": true,
+        "supports_prompt_caching": true,
+        "supports_reasoning": true,
+        "supports_response_schema": true,
+        "supports_tool_choice": true
+    },
+    "zerogpu/gpt-4.1-mini": {
+        "cache_read_input_token_cost": 1e-07,
+        "input_cost_per_token": 4e-07,
+        "litellm_provider": "zerogpu",
+        "max_input_tokens": 1047576,
+        "max_output_tokens": 32768,
+        "mode": "chat",
+        "output_cost_per_token": 1.6e-06,
+        "source": "https://docs.zerogpu.ai/docs/model-catalog",
+        "supports_function_calling": true,
+        "supports_prompt_caching": true,
+        "supports_response_schema": true,
+        "supports_tool_choice": true
+    },
+    "zerogpu/gpt-5.4-nano": {
+        "cache_read_input_token_cost": 2e-08,
+        "input_cost_per_token": 2e-07,
+        "litellm_provider": "zerogpu",
+        "max_input_tokens": 272000,
+        "max_output_tokens": 128000,
+        "mode": "chat",
+        "output_cost_per_token": 1.25e-06,
+        "source": "https://docs.zerogpu.ai/docs/model-catalog",
+        "supports_function_calling": true,
+        "supports_prompt_caching": true,
+        "supports_reasoning": true,
+        "supports_response_schema": true,
+        "supports_tool_choice": true
+    },
+    "zerogpu/gpt-5.6-luna": {
+        "cache_read_input_token_cost": 2e-07,
+        "input_cost_per_token": 2e-07,
+        "litellm_provider": "zerogpu",
+        "max_input_tokens": 272000,
+        "max_output_tokens": 128000,
+        "mode": "chat",
+        "output_cost_per_token": 1.2e-06,
+        "source": "https://docs.zerogpu.ai/docs/model-catalog",
+        "supports_function_calling": true,
+        "supports_prompt_caching": true,
+        "supports_reasoning": true,
+        "supports_response_schema": true,
+        "supports_tool_choice": true
+    },
+    "zerogpu/gpt-6-luna": {
+        "cache_read_input_token_cost": 1e-08,
+        "input_cost_per_token": 1e-07,
+        "litellm_provider": "zerogpu",
+        "max_input_tokens": 272000,
+        "max_output_tokens": 128000,
+        "mode": "chat",
+        "output_cost_per_token": 5e-07,
+        "source": "https://docs.zerogpu.ai/docs/model-catalog",
+        "supports_function_calling": true,
+        "supports_prompt_caching": true,
+        "supports_reasoning": true,
+        "supports_response_schema": true,
+        "supports_tool_choice": true,
+        "supports_vision": true
+    },
+    "zerogpu/gpt-oss-120b": {
+        "cache_read_input_token_cost": 3e-08,
+        "input_cost_per_token": 1.5e-07,
+        "litellm_provider": "zerogpu",
+        "max_input_tokens": 128000,
+        "max_output_tokens": 32768,
+        "mode": "chat",
+        "output_cost_per_token": 6e-07,
+        "source": "https://docs.zerogpu.ai/docs/model-catalog",
+        "supports_function_calling": true,
+        "supports_reasoning": true,
+        "supports_response_schema": true,
+        "supports_tool_choice": true
+    },
+    "zerogpu/LFM2.5-1.2B-Instruct": {
+        "input_cost_per_token": 2e-08,
+        "litellm_provider": "zerogpu",
+        "max_input_tokens": 32768,
+        "max_output_tokens": 8192,
+        "mode": "chat",
+        "output_cost_per_token": 5e-08,
+        "source": "https://docs.zerogpu.ai/docs/model-catalog"
+    },
+    "zerogpu/LFM2.5-1.2B-Thinking": {
+        "input_cost_per_token": 2e-08,
+        "litellm_provider": "zerogpu",
+        "max_input_tokens": 32768,
+        "max_output_tokens": 8192,
+        "mode": "chat",
+        "output_cost_per_token": 5e-08,
+        "source": "https://docs.zerogpu.ai/docs/model-catalog"
+    },
+    "zerogpu/llama-3.1-8b-instruct-fast": {
+        "cache_read_input_token_cost": 2.5e-08,
+        "input_cost_per_token": 1.5e-07,
+        "litellm_provider": "zerogpu",
+        "max_input_tokens": 131072,
+        "max_output_tokens": 8192,
+        "mode": "chat",
+        "output_cost_per_token": 2.8e-07,
+        "source": "https://docs.zerogpu.ai/docs/model-catalog",
+        "supports_function_calling": true,
+        "supports_response_schema": true,
+        "supports_tool_choice": true
+    },
+    "zerogpu/llama-3.2-3b-instruct-fast": {
+        "cache_read_input_token_cost": 2.5e-08,
+        "input_cost_per_token": 5e-08,
+        "litellm_provider": "zerogpu",
+        "max_input_tokens": 131072,
+        "max_output_tokens": 8192,
+        "mode": "chat",
+        "output_cost_per_token": 3e-07,
+        "source": "https://docs.zerogpu.ai/docs/model-catalog"
+    },
+    "zerogpu/qwen3-30b-a3b-fp8": {
+        "cache_read_input_token_cost": 5e-08,
+        "input_cost_per_token": 1e-07,
+        "litellm_provider": "zerogpu",
+        "max_input_tokens": 32768,
+        "max_output_tokens": 16384,
+        "mode": "chat",
+        "output_cost_per_token": 4.5e-07,
+        "source": "https://docs.zerogpu.ai/docs/model-catalog",
+        "supports_function_calling": true,
+        "supports_reasoning": true,
+        "supports_response_schema": true,
+        "supports_tool_choice": true
+    },
+    "zerogpu/qwen3.6-35b-a3b": {
+        "cache_read_input_token_cost": 2e-07,
+        "input_cost_per_token": 2e-07,
+        "litellm_provider": "zerogpu",
+        "max_input_tokens": 262144,
+        "max_output_tokens": 16384,
+        "mode": "chat",
+        "output_cost_per_token": 1.5e-06,
+        "source": "https://docs.zerogpu.ai/docs/model-catalog",
+        "supports_function_calling": true,
+        "supports_reasoning": true,
+        "supports_response_schema": true,
+        "supports_tool_choice": true,
+        "supports_vision": true
+    },
     "together_ai/Qwen/Qwen3.8-Flash": {
         "input_cost_per_token": 1.5e-07,
         "litellm_provider": "together_ai",
@@ -73288,6 +73762,15 @@
         "output_cost_per_token_flex": 5e-06,
         "output_cost_per_token_priority": 2e-05,
         "output_cost_per_token_ultrafast": 6e-05,
+        "reasoning_contexts": [
+            "auto",
+            "current_turn",
+            "all_turns"
+        ],
+        "reasoning_modes": [
+            "standard",
+            "pro"
+        ],
         "regional_processing_uplift_multiplier_eu": 1.1,
         "regional_processing_uplift_multiplier_us": 1.1,
         "search_context_cost_per_query": {
@@ -76787,6 +77270,15 @@
         "output_cost_per_token_batches": 2.5e-06,
         "output_cost_per_token_flex": 2.5e-06,
         "output_cost_per_token_priority": 1e-05,
+        "reasoning_contexts": [
+            "auto",
+            "current_turn",
+            "all_turns"
+        ],
+        "reasoning_modes": [
+            "standard",
+            "pro"
+        ],
         "regional_processing_uplift_multiplier_eu": 1.1,
         "regional_processing_uplift_multiplier_us": 1.1,
         "search_context_cost_per_query": {"search_context_size_high":0.01,"search_context_size_low":0.01,"search_context_size_medium":0.01},
diff --git a/litellm/provider_endpoints_support_backup.json b/litellm/provider_endpoints_support_backup.json
index 1ab03fb3fdc..90395421109 100644
--- a/litellm/provider_endpoints_support_backup.json
+++ b/litellm/provider_endpoints_support_backup.json
@@ -4437,6 +4437,32 @@
         "generateContent": true
       }
     },
+    "zerogpu": {
+      "display_name": "ZeroGPU (`zerogpu`)",
+      "url": "https://docs.litellm.ai/docs/providers/zerogpu",
+      "endpoints": {
+        "chat_completions": true,
+        "responses": true,
+        "text_completion": true,
+        "embeddings": false,
+        "image_generations": false,
+        "image_edits": false,
+        "audio_transcriptions": false,
+        "audio_speech": false,
+        "rerank": false,
+        "ocr": false,
+        "search": false,
+        "moderations": false,
+        "realtime": false,
+        "video_generations": false,
+        "batches": false,
+        "messages": true,
+        "interactions": true,
+        "systemone": false,
+        "a2a": true,
+        "generateContent": true
+      }
+    },
     "ragflow": {
       "display_name": "RAGFlow (`ragflow`)",
       "url": "https://docs.litellm.ai/docs/providers/ragflow",
diff --git a/litellm/proxy/hooks/parallel_request_limiter_v3.py b/litellm/proxy/hooks/parallel_request_limiter_v3.py
index 567b8452ae2..e44d9304ac1 100644
--- a/litellm/proxy/hooks/parallel_request_limiter_v3.py
+++ b/litellm/proxy/hooks/parallel_request_limiter_v3.py
@@ -45,11 +45,14 @@ from litellm.caching.redis_cache import log_redis_failure
 from litellm.constants import DYNAMIC_RATE_LIMIT_ERROR_THRESHOLD_PER_MINUTE, INTERNAL_CALL_ORIGIN_METADATA_KEY
 from litellm.cost_calculator import get_usage_object
 from litellm.integrations.custom_logger import CustomLogger
+from litellm.litellm_core_utils.audio_utils.utils import estimate_audio_tokens
+from litellm.litellm_core_utils.core_helpers import as_str_mapping
 from litellm.litellm_core_utils.prompt_templates.common_utils import (
     get_str_from_messages,
+    split_media_for_tpm,
 )
 from litellm.litellm_core_utils.ptu_pricing import is_ptu_cost_attribution_enabled
-from litellm.litellm_core_utils.token_counter import offload_token_count
+from litellm.litellm_core_utils.token_counter import estimate_image_tokens, offload_token_count
 from litellm.llms.azure.ptu_capacity import normalized_tokens
 from litellm.proxy._types import UserAPIKeyAuth
 from litellm.proxy.auth.auth_utils import (
@@ -98,6 +101,7 @@ if TYPE_CHECKING:
     from opentelemetry.trace import Span as _Span
 
     from litellm.proxy.utils import InternalUsageCache as _InternalUsageCache
+    from litellm.router import Router
     from litellm.types.agents import AgentResponse
     from litellm.types.caching import RedisPipelineIncrementOperation
 
@@ -135,6 +139,18 @@ class RateLimitedModel:
         return requested_limit if requested_limit is not None else limits.get(self.group)
 
 
+def _resolve_media_models(router: "Router | None", model: str, team_id: str | None) -> tuple[str, ...]:
+    if router is None:
+        return (model,)
+    return tuple(dict.fromkeys(router.resolved_litellm_models(model, team_id, use_base_model=True))) or (model,)
+
+
+def _resolve_media_models_via_proxy_router(model: str, team_id: str | None) -> tuple[str, ...]:
+    from litellm.proxy.proxy_server import llm_router
+
+    return _resolve_media_models(llm_router, model, team_id)
+
+
 def _resolve_model_group_alias_via_proxy_router(model: str) -> str | None:
     from litellm.proxy.proxy_server import llm_router
 
@@ -862,6 +878,7 @@ class _PROXY_MaxParallelRequestsHandler_v3(CustomLogger):
         time_provider: Callable[[], datetime] | None = None,
         tag_rate_limit_resolver: TagRateLimitResolver = resolve_tag_rate_limits_from_db,
         model_group_resolver: Callable[[str], str | None] = _resolve_model_group_alias_via_proxy_router,
+        media_model_resolver: Callable[[str, str | None], tuple[str, ...]] = _resolve_media_models_via_proxy_router,
         ptu_team_ceiling_resolver: Callable[
             [str, str], PTUTeamCeiling | None
         ] = _resolve_ptu_team_ceiling_via_proxy_router,
@@ -872,6 +889,7 @@ class _PROXY_MaxParallelRequestsHandler_v3(CustomLogger):
         self._time_provider = time_provider or datetime.now
         self._tag_rate_limit_resolver = tag_rate_limit_resolver
         self._model_group_resolver = model_group_resolver
+        self._media_model_resolver = media_model_resolver
         self._ptu_team_ceiling_resolver = ptu_team_ceiling_resolver
         self._fail_closed_resolver = fail_closed_resolver
         self._force_hash_tag_grouping_resolver = force_hash_tag_grouping_resolver
@@ -1133,11 +1151,12 @@ class _PROXY_MaxParallelRequestsHandler_v3(CustomLogger):
 
     def _estimate_tokens_for_request(
         self,
-        data: dict,
+        data: object,
         model: str | None = None,
         min_configured_tpm_limit: int | None = None,
         call_type: str | None = None,
         configured_output_tokens: int | None = None,
+        team_id: str | None = None,
     ) -> int:
         """
         Estimate total tokens this request will consume so we can reserve them
@@ -1164,6 +1183,8 @@ class _PROXY_MaxParallelRequestsHandler_v3(CustomLogger):
             min_configured_tpm_limit=min_configured_tpm_limit,
             call_type=call_type,
             configured_output_tokens=configured_output_tokens,
+            team_id=team_id,
+            media_model_resolver=self._media_model_resolver,
         )
         total_estimated: Final = estimated_input_tokens + max_tokens_estimate
 
@@ -1184,6 +1205,7 @@ class _PROXY_MaxParallelRequestsHandler_v3(CustomLogger):
         call_type: str | None,
         configured_output_tokens: int | None,
         raw_estimate: int,
+        team_id: str | None = None,
     ) -> int:
         """The team PTU ceiling counts Azure normalized tokens, so its reservation weighs the
         output budget the way the ceiling does instead of the raw sum the other scopes reserve."""
@@ -1194,6 +1216,8 @@ class _PROXY_MaxParallelRequestsHandler_v3(CustomLogger):
             min_configured_tpm_limit=min_configured_tpm_limit,
             call_type=call_type,
             configured_output_tokens=configured_output_tokens,
+            team_id=team_id,
+            media_model_resolver=self._media_model_resolver,
         )
         normalized: Final = normalized_tokens(
             ceiling, prompt_tokens=estimated_input_tokens, completion_tokens=max_tokens_estimate
@@ -1206,6 +1230,9 @@ class _PROXY_MaxParallelRequestsHandler_v3(CustomLogger):
         min_configured_tpm_limit: int | None = None,
         call_type: str | None = None,
         configured_output_tokens: int | None = None,
+        include_media: bool = True,
+        team_id: str | None = None,
+        media_model_resolver: Callable[[str, str | None], tuple[str, ...]] | None = None,
     ) -> tuple[int, int]:
         """
         Estimate input tokens and output (max_tokens) budget separately, so
@@ -1229,10 +1256,12 @@ class _PROXY_MaxParallelRequestsHandler_v3(CustomLogger):
         floor entirely, so the reservation reflects what this tenant's model
         actually emits rather than one constant shared by every tenant.
         """
-        if not isinstance(data, dict):
+        request_data: Final = as_str_mapping(data)
+        if not isinstance(data, dict) or request_data is None:
             return 0, 0
+        request_model: Final = request_data.get("model")
         translated_data: Final = self._translate_google_genai_native_request(data, call_type)
-        estimable_data: Final = translated_data if translated_data is not None else data
+        estimable_data: Final = translated_data if translated_data is not None else request_data
         selected_fields: Final[tuple[object | None, object | None, object | None]] = (
             (None, None, estimable_data.get("input"))
             if call_type in RESPONSES_API_CALL_TYPES or call_type in EMBEDDING_API_CALL_TYPES
@@ -1249,10 +1278,27 @@ class _PROXY_MaxParallelRequestsHandler_v3(CustomLogger):
             )
         )
         messages, prompt, raw_input = selected_fields
-        input_text: Final = (
+        original_input: Final = (
             billable_input_since_newest_compaction(raw_input) if call_type in RESPONSES_API_CALL_TYPES else raw_input
         )
 
+        media_source: Final = messages if messages is not None else original_input
+        projected, media = (
+            split_media_for_tpm(media_source)
+            if include_media and (isinstance(messages, list) or call_type in RESPONSES_API_CALL_TYPES)
+            else (original_input, ())
+        )
+        input_text: Final = projected if call_type in RESPONSES_API_CALL_TYPES else original_input
+        fallback_model: Final = request_model if isinstance(request_model, str) else None
+        resolved_models: Final = (
+            media_model_resolver(fallback_model or "", team_id)
+            if media and media_model_resolver is not None
+            else (fallback_model or "",)
+        )
+        media_tokens: Final = sum(
+            self._estimate_media_block_tokens(block, resolved_models, fallback_model) for block in media
+        )
+
         total_chars: Final = (
             len(get_str_from_messages(messages))
             if isinstance(messages, list) and messages
@@ -1267,7 +1313,9 @@ class _PROXY_MaxParallelRequestsHandler_v3(CustomLogger):
             else 0
         )
 
-        estimated_input_tokens: Final = max(1, total_chars // DEFAULT_CHARS_PER_TOKEN) if total_chars > 0 else 0
+        estimated_input_tokens: Final = (
+            max(1, total_chars // DEFAULT_CHARS_PER_TOKEN) if total_chars > 0 else 0
+        ) + media_tokens
 
         explicit_max_tokens: Final = self._get_explicit_output_cap(data, call_type)
         generates_no_output: Final = (
@@ -1283,7 +1331,7 @@ class _PROXY_MaxParallelRequestsHandler_v3(CustomLogger):
         max_tokens_estimate: Final = (
             0
             if generates_no_output
-            or (explicit_max_tokens is None and total_chars == 0 and configured_output_tokens is None)
+            or (explicit_max_tokens is None and estimated_input_tokens == 0 and configured_output_tokens is None)
             else explicit_max_tokens
             if explicit_max_tokens is not None
             else configured_output_tokens
@@ -1293,6 +1341,24 @@ class _PROXY_MaxParallelRequestsHandler_v3(CustomLogger):
 
         return estimated_input_tokens, max_tokens_estimate * self.get_output_candidate_count(data, call_type)
 
+    @staticmethod
+    def _estimate_media_block_tokens(
+        block: Mapping[str, object], models: tuple[str, ...], fallback_model: str | None
+    ) -> int:
+        if block.get("type") == "input_audio":
+            audio: Final = _callback_kwargs_mapping(block.get("input_audio"))
+            data: Final = audio.get("data")
+            return estimate_audio_tokens(data if isinstance(data, str) else None, models, fallback_model=fallback_model)
+        image: Final = _callback_kwargs_mapping(block.get("image_url"))
+        url: Final = image.get("url")
+        detail: Final = image.get("detail")
+        return estimate_image_tokens(
+            models,
+            url if isinstance(url, str) else "",
+            detail if isinstance(detail, str) else "auto",
+            fallback_model=fallback_model,
+        )
+
     def _is_redis_cluster(self) -> bool:
         """
         Check if the dual cache is using Redis cluster.
@@ -3958,7 +4024,9 @@ class _PROXY_MaxParallelRequestsHandler_v3(CustomLogger):
         except Exception:  # noqa: BLE001  # tokenizer failures degrade to the cheap estimate
             if call_type in RERANK_API_CALL_TYPES and isinstance(selected_text, str):
                 return max(0, len(selected_text) // DEFAULT_CHARS_PER_TOKEN)
-            estimated_input_tokens, _ = self._estimate_input_and_output_tokens(data=data, call_type=call_type)
+            estimated_input_tokens, _ = self._estimate_input_and_output_tokens(
+                data=data, call_type=call_type, include_media=False
+            )
             return estimated_input_tokens + audio_token_estimate
 
     async def _reserve_project_io_tokens_or_raise(
@@ -4003,6 +4071,7 @@ class _PROXY_MaxParallelRequestsHandler_v3(CustomLogger):
             data=data,
             min_configured_tpm_limit=min_configured_otpm_limit,
             call_type=call_type,
+            include_media=False,
         )
         raw_estimated_input_tokens: Final = await offload_token_count(self._estimate_precise_input_tokens)(
             data=data, model=requested_model, call_type=call_type
@@ -4360,12 +4429,13 @@ class _PROXY_MaxParallelRequestsHandler_v3(CustomLogger):
                 # Post-call reconciliation refunds the over-reservation
                 # delta when actual usage comes in below the floor.
                 estimated_tokens: Final = max(
-                    self._estimate_tokens_for_request(
+                    await offload_token_count(self._estimate_tokens_for_request)(
                         data=data,
                         model=requested_model,
                         min_configured_tpm_limit=min_configured_tpm_limit,
                         call_type=call_type,
                         configured_output_tokens=configured_output_tokens,
+                        team_id=user_api_key_dict.team_id,
                     ),
                     1,
                 )
@@ -4383,13 +4453,14 @@ class _PROXY_MaxParallelRequestsHandler_v3(CustomLogger):
                     )
 
                 capped_request: Final = _REQUEST_RATE_LIMIT_DATA.validate_python(data)
-                ptu_estimated_tokens: Final = self._estimate_ptu_tokens_for_request(
+                ptu_estimated_tokens: Final = await offload_token_count(self._estimate_ptu_tokens_for_request)(
                     ceiling=stash.ptu_ceiling,
                     data=capped_request,
                     min_configured_tpm_limit=min_configured_tpm_limit,
                     call_type=call_type,
                     configured_output_tokens=configured_output_tokens,
                     raw_estimate=estimated_tokens,
+                    team_id=user_api_key_dict.team_id,
                 )
                 if stash.ptu_ceiling is not None and ptu_estimated_tokens > stash.ptu_ceiling.tpm_limit:
                     if not reuses_request_slot:
diff --git a/litellm/proxy/public_endpoints/provider_create_fields.json b/litellm/proxy/public_endpoints/provider_create_fields.json
index 0dd96c856f8..f2d88702470 100644
--- a/litellm/proxy/public_endpoints/provider_create_fields.json
+++ b/litellm/proxy/public_endpoints/provider_create_fields.json
@@ -4145,6 +4145,34 @@
     ],
     "default_model_placeholder": "gpt-3.5-turbo"
   },
+  {
+    "provider": "ZeroGPU",
+    "provider_display_name": "ZeroGPU",
+    "litellm_provider": "zerogpu",
+    "credential_fields": [
+      {
+        "key": "api_base",
+        "label": "API Base",
+        "placeholder": "https://api.zerogpu.ai/v1",
+        "tooltip": null,
+        "required": false,
+        "field_type": "text",
+        "options": null,
+        "default_value": null
+      },
+      {
+        "key": "api_key",
+        "label": "API Key",
+        "placeholder": null,
+        "tooltip": null,
+        "required": true,
+        "field_type": "password",
+        "options": null,
+        "default_value": null
+      }
+    ],
+    "default_model_placeholder": "zerogpu/gpt-oss-120b"
+  },
   {
     "provider": "CURSOR",
     "provider_display_name": "Cursor",
diff --git a/litellm/responses/utils.py b/litellm/responses/utils.py
index 02d07932533..cf993c69814 100644
--- a/litellm/responses/utils.py
+++ b/litellm/responses/utils.py
@@ -1,8 +1,10 @@
 import base64
+import os
 import re
 from collections.abc import Callable, Collection, Iterable, Mapping, Sequence
 from functools import reduce
-from typing import Any, Final, Optional, TypeVar, Union, cast, get_type_hints, overload
+from types import MappingProxyType
+from typing import Any, Final, Optional, TypeVar, Union, cast, get_args, get_type_hints, overload
 
 from pydantic import BaseModel, TypeAdapter
 from typing_extensions import TypedDict as ExtraItemsTypedDict
@@ -14,6 +16,7 @@ from litellm.litellm_core_utils.core_helpers import as_str_mapping, attribute_or
 from litellm.litellm_core_utils.dot_notation_indexing import delete_nested_value, is_nested_path
 from litellm.litellm_core_utils.get_provider_specific_headers import ProviderSpecificHeaderUtils
 from litellm.llms.base_llm.responses.transformation import BaseResponsesAPIConfig, ReasoningSummaryLevel
+from litellm.llms.openai.chat.gpt_transformation import OpenAIGPTConfig
 from litellm.types.llms.openai import (
     AllMessageValues,
     InputTokensDetails,
@@ -29,6 +32,7 @@ from litellm.types.responses.main import DecodedResponseId
 from litellm.types.utils import (
     CacheCreationTokenDetails,
     CompletionTokensDetailsWrapper,
+    ModelInfo,
     PromptTokensDetailsWrapper,
     ProviderSpecificHeader,
     SpecialEnums,
@@ -1382,3 +1386,98 @@ def auto_reasoning_summary(model: str, custom_llm_provider: object) -> Reasoning
         provider, model.removeprefix(f"{provider}/")
     )
     return "detailed" if responses_config is None else responses_config.auto_reasoning_summary()
+
+
+def opt_in_auto_reasoning_summary(model: str | None, custom_llm_provider: object) -> ReasoningSummaryLevel | None:
+    if not (litellm.reasoning_auto_summary or os.getenv("LITELLM_REASONING_AUTO_SUMMARY", "false").lower() == "true"):
+        return None
+    return "detailed" if model is None else auto_reasoning_summary(model, custom_llm_provider)
+
+
+def reasoning_with_summary_default(
+    reasoning: Mapping[str, object], summary_alias: object, model: str, custom_llm_provider: object
+) -> Mapping[str, object]:
+    if "summary" in reasoning:
+        return {**reasoning}
+    summary: Final = (
+        summary_alias if summary_alias is not None else opt_in_auto_reasoning_summary(model, custom_llm_provider)
+    )
+    return {**reasoning} if summary is None else {**reasoning, "summary": summary}
+
+
+_SUMMARY_VALUES: Final = frozenset((*get_args(ReasoningSummaryLevel), None))
+
+
+def _openai_model_info(model: str) -> ModelInfo | None:
+    from litellm.utils import ModelInfoLookupMiss, lookup_model_info_for_registration
+
+    model_info: Final = lookup_model_info_for_registration(model.removeprefix("responses/"), "openai")
+    return None if isinstance(model_info, ModelInfoLookupMiss) else model_info
+
+
+def _declared_values(values: Sequence[str] | None) -> frozenset[str | None] | None:
+    return None if values is None else frozenset(values)
+
+
+def _openai_reasoning_field_values(model: str) -> Mapping[str, frozenset[str | None] | None]:
+    model_info: Final = _openai_model_info(model)
+    if model_info is None:
+        return MappingProxyType({"summary": _SUMMARY_VALUES, "mode": None, "context": None})
+    if not model_info.get("supports_reasoning"):
+        return MappingProxyType({})
+    return MappingProxyType(
+        {
+            "summary": _SUMMARY_VALUES,
+            "mode": _declared_values(model_info.get("reasoning_modes")),
+            "context": _declared_values(model_info.get("reasoning_contexts")),
+        }
+    )
+
+
+def _openai_accepts_reasoning_field(
+    key: str, value: object, values_by_field: Mapping[str, frozenset[str | None] | None]
+) -> bool:
+    if key == "effort":
+        return True
+    if key not in values_by_field:
+        return False
+    allowed: Final = values_by_field[key]
+    return allowed is None or (isinstance(value, str | None) and value in allowed)
+
+
+def _openai_accepted_reasoning(reasoning: Mapping[str, object], model: str) -> Mapping[str, object]:
+    values_by_field: Final = _openai_reasoning_field_values(model)
+    return {
+        key: value for key, value in reasoning.items() if _openai_accepts_reasoning_field(key, value, values_by_field)
+    }
+
+
+def _additional_drop_paths(additional_drop_params: object) -> tuple[str, ...]:
+    if additional_drop_params.__class__ is not list:
+        return ()
+    return tuple(path for path in iter_items(additional_drop_params) if isinstance(path, str))
+
+
+def openai_bridge_reasoning(
+    *,
+    requested: Mapping[str, object],
+    effort_kept: bool,
+    summary_alias: object,
+    model: str,
+    drop_params: bool,
+    additional_drop_params: object,
+) -> Mapping[str, object] | None:
+    drop_paths: Final = _additional_drop_paths(additional_drop_params)
+    if "reasoning_effort" in drop_paths:
+        return None
+    kept: Final = requested if effort_kept else {key: value for key, value in requested.items() if key != "effort"}
+    with_summary: Final = reasoning_with_summary_default(kept, summary_alias, model, "openai")
+    accepted: Final = (
+        _openai_accepted_reasoning(with_summary, model)
+        if drop_params and OpenAIGPTConfig.is_openai_catalog_model(model)
+        else {**with_summary}
+    )
+    remaining: Final = as_str_mapping(
+        _apply_nested_drop_params({"reasoning_effort": accepted}, list(drop_paths)).get("reasoning_effort")
+    )
+    return remaining or None
diff --git a/litellm/router.py b/litellm/router.py
index ffe7ab29658..a94ab430898 100644
--- a/litellm/router.py
+++ b/litellm/router.py
@@ -10365,28 +10365,38 @@ class Router:
                 model_info[field] = backend_value
 
     @staticmethod
-    def _cost_map_backend_model(deployment: Deployment) -> str:
-        model_info_base_model: Final = deployment.model_info.base_model
+    def _cost_map_backend_model(deployment: Deployment | DeploymentTypedDict) -> str:
+        model_info_base_model: Final = (
+            deployment.model_info.base_model
+            if isinstance(deployment, Deployment)
+            else _configured_model_info(deployment).get("base_model")
+        )
         if isinstance(model_info_base_model, str) and model_info_base_model:
             return model_info_base_model
-        params_base_model: Final = deployment.litellm_params.get("base_model")
+        params: Final = _LITELLM_PARAMS_ADAPTER.validate_python(
+            deployment.litellm_params.model_dump(exclude_none=True)
+            if isinstance(deployment, Deployment)
+            else deployment["litellm_params"]
+        )
+        params_base_model: Final = params.get("base_model")
         if isinstance(params_base_model, str) and params_base_model:
             return params_base_model
-        params: Final = _LITELLM_PARAMS_ADAPTER.validate_python(deployment.litellm_params.model_dump(exclude_none=True))
+        model: Final = (
+            deployment.litellm_params.model
+            if isinstance(deployment, Deployment)
+            else deployment["litellm_params"].get("model", "")
+        )
         invoked_model: Final = params.get("model_id")
         if (
             isinstance(invoked_model, str)
             and invoked_model
-            and (
-                deployment.litellm_params.custom_llm_provider == "bedrock"
-                or deployment.litellm_params.model.startswith("bedrock/")
-            )
+            and (params.get("custom_llm_provider") == "bedrock" or model.startswith("bedrock/"))
         ):
             profile_model: Final = invoked_model if invoked_model.startswith("bedrock/") else f"bedrock/{invoked_model}"
             profile_info: Final = lookup_model_info_for_registration(model=profile_model, custom_llm_provider="bedrock")
             if not isinstance(profile_info, ModelInfoLookupMiss):
                 return profile_model
-        return deployment.litellm_params.model
+        return model
 
     @staticmethod
     def _inherit_builtin_service_tier_pricing(
@@ -13946,7 +13956,9 @@ class Router:
         ]
         return named or self._get_wildcard_deployments(model_name=model_group)
 
-    def resolved_litellm_models(self, model_name: str, team_id: str | None = None) -> tuple[str, ...]:
+    def resolved_litellm_models(
+        self, model_name: str, team_id: str | None = None, *, use_base_model: bool = False
+    ) -> tuple[str, ...]:
         """The provider model strings `model_name` can actually be served by on this proxy.
 
         `get_model_list` composes every channel the request path itself uses (exact name,
@@ -13959,6 +13971,12 @@ class Router:
         deployment behind it - so the fallback for an empty result is the caller's policy,
         never this function's.
         """
+        if use_base_model:
+            return tuple(
+                backend_model
+                for deployment in self.get_model_list(model_name=model_name, team_id=team_id) or ()
+                if (backend_model := self._cost_map_backend_model(deployment))
+            )
         return tuple(
             litellm_model
             for deployment in self.get_model_list(model_name=model_name, team_id=team_id) or ()
diff --git a/litellm/types/utils.py b/litellm/types/utils.py
index f54623da72d..dcb0141ce95 100644
--- a/litellm/types/utils.py
+++ b/litellm/types/utils.py
@@ -225,6 +225,8 @@ class ProviderSpecificModelInfo(TypedDict, total=False):
     supports_xhigh_reasoning_effort: bool | None
     supports_max_reasoning_effort: bool | None
     reasoning_effort_levels: ReadOnly[Sequence[str] | None]
+    reasoning_modes: ReadOnly[Sequence[str] | None]
+    reasoning_contexts: ReadOnly[Sequence[str] | None]
     default_reasoning_effort: ReadOnly[Literal["none", "minimal", "low", "medium", "high", "xhigh"] | None]
     supports_output_config: bool | None
     supports_image_size: bool | None
@@ -4587,6 +4589,7 @@ class LlmProviders(str, Enum):
     PRISM = "prism"
     OPENINFER = "openinfer"
     INFERENCEAPIS = "inferenceapis"
+    ZEROGPU = "zerogpu"
     DARKBLOOM = "darkbloom"
     META = "meta"
     SAIL = "sail"
diff --git a/litellm/utils.py b/litellm/utils.py
index 61b0e17e197..a231644addf 100644
--- a/litellm/utils.py
+++ b/litellm/utils.py
@@ -7000,6 +7000,8 @@ def get_model_info_helper(
                 supports_xhigh_reasoning_effort=_model_info.get("supports_xhigh_reasoning_effort", None),
                 supports_max_reasoning_effort=_model_info.get("supports_max_reasoning_effort", None),
                 reasoning_effort_levels=_model_info.get("reasoning_effort_levels", None),
+                reasoning_modes=_model_info.get("reasoning_modes", None),
+                reasoning_contexts=_model_info.get("reasoning_contexts", None),
                 default_reasoning_effort=_model_info.get("default_reasoning_effort", None),
                 bedrock_output_config_effort_ceiling=_model_info.get("bedrock_output_config_effort_ceiling", None),
                 bedrock_converse_supports_strict_tools=_model_info.get("bedrock_converse_supports_strict_tools", None),
diff --git a/model_prices_and_context_window.json b/model_prices_and_context_window.json
index 7199a075612..4e022e1a4b2 100644
--- a/model_prices_and_context_window.json
+++ b/model_prices_and_context_window.json
@@ -35598,6 +35598,13 @@
         "output_cost_per_token_batches": 5e-06,
         "output_cost_per_token_flex": 5e-06,
         "output_cost_per_token_priority": 2e-05,
+        "reasoning_contexts": [
+            "auto",
+            "current_turn"
+        ],
+        "reasoning_modes": [
+            "standard"
+        ],
         "search_context_cost_per_query": {
             "search_context_size_high": 0.01,
             "search_context_size_low": 0.01,
@@ -35675,6 +35682,13 @@
         "mode": "chat",
         "output_cost_per_token": 1e-05,
         "output_cost_per_token_priority": 2e-05,
+        "reasoning_contexts": [
+            "auto",
+            "current_turn"
+        ],
+        "reasoning_modes": [
+            "standard"
+        ],
         "search_context_cost_per_query": {
             "search_context_size_high": 0.01,
             "search_context_size_low": 0.01,
@@ -35851,6 +35865,13 @@
         "mode": "chat",
         "output_cost_per_token": 1e-05,
         "output_cost_per_token_priority": 2e-05,
+        "reasoning_contexts": [
+            "auto",
+            "current_turn"
+        ],
+        "reasoning_modes": [
+            "standard"
+        ],
         "search_context_cost_per_query": {
             "search_context_size_high": 0.01,
             "search_context_size_low": 0.01,
@@ -35902,6 +35923,13 @@
         "mode": "chat",
         "output_cost_per_token": 1.4e-05,
         "output_cost_per_token_priority": 2.8e-05,
+        "reasoning_contexts": [
+            "auto",
+            "current_turn"
+        ],
+        "reasoning_modes": [
+            "standard"
+        ],
         "search_context_cost_per_query": {
             "search_context_size_high": 0.01,
             "search_context_size_low": 0.01,
@@ -36017,6 +36045,13 @@
         "mode": "chat",
         "output_cost_per_token": 1.4e-05,
         "output_cost_per_token_priority": 2.8e-05,
+        "reasoning_contexts": [
+            "auto",
+            "current_turn"
+        ],
+        "reasoning_modes": [
+            "standard"
+        ],
         "search_context_cost_per_query": {
             "search_context_size_high": 0.01,
             "search_context_size_low": 0.01,
@@ -36066,6 +36101,13 @@
         "mode": "responses",
         "output_cost_per_token": 0.000168,
         "output_cost_per_token_batches": 8.4e-05,
+        "reasoning_contexts": [
+            "auto",
+            "current_turn"
+        ],
+        "reasoning_modes": [
+            "pro"
+        ],
         "search_context_cost_per_query": {
             "search_context_size_high": 0.01,
             "search_context_size_low": 0.01,
@@ -36107,6 +36149,13 @@
         "mode": "responses",
         "output_cost_per_token": 0.000168,
         "output_cost_per_token_batches": 8.4e-05,
+        "reasoning_contexts": [
+            "auto",
+            "current_turn"
+        ],
+        "reasoning_modes": [
+            "pro"
+        ],
         "search_context_cost_per_query": {
             "search_context_size_high": 0.01,
             "search_context_size_low": 0.01,
@@ -36194,6 +36243,15 @@
         "output_cost_per_token_flex": 2.5e-05,
         "output_cost_per_token_priority": 0.0001,
         "output_cost_per_token_ultrafast": 0.0003,
+        "reasoning_contexts": [
+            "auto",
+            "current_turn",
+            "all_turns"
+        ],
+        "reasoning_modes": [
+            "standard",
+            "pro"
+        ],
         "regional_processing_uplift_multiplier_eu": 1.1,
         "regional_processing_uplift_multiplier_us": 1.1,
         "search_context_cost_per_query": {
@@ -36278,6 +36336,15 @@
         "output_cost_per_token_above_272k_tokens_batches": 7.5e-06,
         "output_cost_per_token_flex": 5e-06,
         "output_cost_per_token_priority": 2e-05,
+        "reasoning_contexts": [
+            "auto",
+            "current_turn",
+            "all_turns"
+        ],
+        "reasoning_modes": [
+            "standard",
+            "pro"
+        ],
         "regional_processing_uplift_multiplier_eu": 1.1,
         "regional_processing_uplift_multiplier_us": 1.1,
         "search_context_cost_per_query": {
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+        "input_cost_per_token": 1e-07,
+        "litellm_provider": "zerogpu",
+        "max_input_tokens": 32768,
+        "max_output_tokens": 16384,
+        "mode": "chat",
+        "output_cost_per_token": 4.5e-07,
+        "source": "https://docs.zerogpu.ai/docs/model-catalog",
+        "supports_function_calling": true,
+        "supports_reasoning": true,
+        "supports_response_schema": true,
+        "supports_tool_choice": true
+    },
+    "zerogpu/qwen3.6-35b-a3b": {
+        "cache_read_input_token_cost": 2e-07,
+        "input_cost_per_token": 2e-07,
+        "litellm_provider": "zerogpu",
+        "max_input_tokens": 262144,
+        "max_output_tokens": 16384,
+        "mode": "chat",
+        "output_cost_per_token": 1.5e-06,
+        "source": "https://docs.zerogpu.ai/docs/model-catalog",
+        "supports_function_calling": true,
+        "supports_reasoning": true,
+        "supports_response_schema": true,
+        "supports_tool_choice": true,
+        "supports_vision": true
+    },
     "together_ai/Qwen/Qwen3.8-Flash": {
         "input_cost_per_token": 1.5e-07,
         "litellm_provider": "together_ai",
@@ -73288,6 +73762,15 @@
         "output_cost_per_token_flex": 5e-06,
         "output_cost_per_token_priority": 2e-05,
         "output_cost_per_token_ultrafast": 6e-05,
+        "reasoning_contexts": [
+            "auto",
+            "current_turn",
+            "all_turns"
+        ],
+        "reasoning_modes": [
+            "standard",
+            "pro"
+        ],
         "regional_processing_uplift_multiplier_eu": 1.1,
         "regional_processing_uplift_multiplier_us": 1.1,
         "search_context_cost_per_query": {
@@ -76787,6 +77270,15 @@
         "output_cost_per_token_batches": 2.5e-06,
         "output_cost_per_token_flex": 2.5e-06,
         "output_cost_per_token_priority": 1e-05,
+        "reasoning_contexts": [
+            "auto",
+            "current_turn",
+            "all_turns"
+        ],
+        "reasoning_modes": [
+            "standard",
+            "pro"
+        ],
         "regional_processing_uplift_multiplier_eu": 1.1,
         "regional_processing_uplift_multiplier_us": 1.1,
         "search_context_cost_per_query": {"search_context_size_high":0.01,"search_context_size_low":0.01,"search_context_size_medium":0.01},
diff --git a/provider_endpoints_support.json b/provider_endpoints_support.json
index 1ab03fb3fdc..90395421109 100644
--- a/provider_endpoints_support.json
+++ b/provider_endpoints_support.json
@@ -4437,6 +4437,32 @@
         "generateContent": true
       }
     },
+    "zerogpu": {
+      "display_name": "ZeroGPU (`zerogpu`)",
+      "url": "https://docs.litellm.ai/docs/providers/zerogpu",
+      "endpoints": {
+        "chat_completions": true,
+        "responses": true,
+        "text_completion": true,
+        "embeddings": false,
+        "image_generations": false,
+        "image_edits": false,
+        "audio_transcriptions": false,
+        "audio_speech": false,
+        "rerank": false,
+        "ocr": false,
+        "search": false,
+        "moderations": false,
+        "realtime": false,
+        "video_generations": false,
+        "batches": false,
+        "messages": true,
+        "interactions": true,
+        "systemone": false,
+        "a2a": true,
+        "generateContent": true
+      }
+    },
     "ragflow": {
       "display_name": "RAGFlow (`ragflow`)",
       "url": "https://docs.litellm.ai/docs/providers/ragflow",
diff --git a/tests/unit/litellm_core_utils/prompt_templates/test_litellm_core_utils_prompt_templates_common_utils.py b/tests/unit/litellm_core_utils/prompt_templates/test_litellm_core_utils_prompt_templates_common_utils.py
index d50ab908b43..b9675f6fd5c 100644
--- a/tests/unit/litellm_core_utils/prompt_templates/test_litellm_core_utils_prompt_templates_common_utils.py
+++ b/tests/unit/litellm_core_utils/prompt_templates/test_litellm_core_utils_prompt_templates_common_utils.py
@@ -37,6 +37,7 @@ from litellm.litellm_core_utils.prompt_templates.common_utils import (
     schema_has_unresolvable_ref,
     schema_property_count,
     split_concatenated_json_objects,
+    split_media_for_tpm,
     strip_encrypted_reasoning_from_messages,
     strip_litellm_response_only_fields,
     system_messages_first,
@@ -2512,3 +2513,118 @@ def test_shared_image_url_agrees_with_responses_normalization(
     expected: Final = {"type": "image_url", "image_url": {"url": "data:image/png;base64,IMAGE"}}
     assert as_openai_image_part(part) == expected
     assert as_openai_image_part(normalized) == expected
+
+
+@pytest.mark.parametrize(
+    "part,projected,media",
+    [
+        (
+            {"type": "image_url", "image_url": {"url": "data:image/png;base64,IMAGE", "detail": "high"}},
+            {"type": "image_url", "image_url": {"url": "", "detail": "high"}},
+            {"type": "image_url", "image_url": {"url": "data:image/png;base64,IMAGE", "detail": "high"}},
+        ),
+        (
+            {"type": "input_image", "image_url": "https://example.com/image.png", "detail": "low"},
+            {"type": "input_image", "image_url": "", "detail": "low"},
+            {"type": "image_url", "image_url": {"url": "https://example.com/image.png", "detail": "low"}},
+        ),
+        (
+            {"type": "computer_screenshot", "image_url": "data:image/png;base64,IMAGE"},
+            {"type": "computer_screenshot", "image_url": ""},
+            {"type": "image_url", "image_url": {"url": "data:image/png;base64,IMAGE", "detail": "auto"}},
+        ),
+        (
+            {"type": "image", "source": {"type": "base64", "media_type": "image/png", "data": "IMAGE"}},
+            {"type": "image", "source": {"type": "base64", "media_type": "image/png", "data": ""}},
+            {"type": "image_url", "image_url": {"url": "data:image/png;base64,IMAGE", "detail": "auto"}},
+        ),
+        (
+            {"type": "input_audio", "input_audio": {"data": "AUDIO", "format": "wav"}},
+            {"type": "input_audio", "input_audio": {"data": "", "format": "wav"}},
+            {"type": "input_audio", "input_audio": {"data": "AUDIO", "format": "wav"}},
+        ),
+        (
+            {"type": "file", "file": {"file_data": "IMAGE", "format": "image/png", "filename": "image.png"}},
+            {"type": "file", "file": {"file_data": "", "format": "image/png", "filename": "image.png"}},
+            {"type": "image_url", "image_url": {"url": "data:image/png;base64,IMAGE", "detail": "auto"}},
+        ),
+        (
+            {"type": "input_file", "file_data": "data:audio/wav;base64,AUDIO", "filename": "audio.wav"},
+            {"type": "input_file", "file_data": "", "filename": "audio.wav"},
+            {"type": "input_audio", "input_audio": {"data": "AUDIO", "format": "wav"}},
+        ),
+    ],
+)
+def test_tpm_projection_blanks_only_declared_media_transport(
+    part: Mapping[str, object], projected: Mapping[str, object], media: Mapping[str, object],
+) -> None:
+    text: Final = {"type": "text", "text": "data:image/png;base64,IMAGE"}
+    request: Final = [{"role": "user", "content": [text, {**part, "cache_control": {"type": "ephemeral"}}]}]
+    original: Final = copy.deepcopy(request)
+    assert split_media_for_tpm(request) == (
+        [{"role": "user", "content": [text, {**projected, "cache_control": {"type": "ephemeral"}}]}],
+        (media,),
+    )
+    assert request == original
+
+
+def test_tpm_projection_retains_nested_and_native_history_around_media() -> None:
+    image: Final = {"type": "image_url", "image_url": {"url": "data:image/png;base64,IMAGE", "detail": "high"}}
+    empty_image: Final = {"type": "image_url", "image_url": {"url": "", "detail": "high"}}
+    document: Final = {"type": "document", "title": "keep", "source": {"type": "content", "content": [image]}}
+    empty_document: Final = {**document, "source": {"type": "content", "content": [empty_image]}}
+    tool: Final = {"type": "tool_result", "tool_use_id": "call", "content": [document, {"type": "text", "text": "keep"}]}
+    empty_tool: Final = {**tool, "content": [empty_document, {"type": "text", "text": "keep"}]}
+    request: Final = [
+        {"role": "user", "content": [tool]},
+        {"type": "function_call_output", "call_id": "call", "output": [image]},
+        {"type": "custom_tool_call_output", "call_id": "custom", "output": [image]},
+        {"type": "computer_call_output", "call_id": "computer", "output": {
+            "type": "computer_screenshot", "image_url": "data:image/png;base64,IMAGE",
+        }},
+        {"type": "image_generation_call", "id": "ig", "result": "IMAGE", "status": "completed"},
+        {"type": "code_interpreter_call", "id": "ci", "code": "keep()", "outputs": [
+            {"type": "logs", "logs": "keep"}, {"type": "image", "url": "https://example.com/image.png"},
+        ]},
+    ]
+    original: Final = copy.deepcopy(request)
+    projected, media = split_media_for_tpm(request)
+    assert projected == [
+        {"role": "user", "content": [empty_tool]},
+        {"type": "function_call_output", "call_id": "call", "output": [empty_image]},
+        {"type": "custom_tool_call_output", "call_id": "custom", "output": [empty_image]},
+        {"type": "computer_call_output", "call_id": "computer", "output": {
+            "type": "computer_screenshot", "image_url": "",
+        }},
+        {"type": "image_generation_call", "id": "ig", "result": "", "status": "completed"},
+        {"type": "code_interpreter_call", "id": "ci", "code": "keep()", "outputs": [
+            {"type": "logs", "logs": "keep"}, {"type": "image", "url": ""},
+        ]},
+    ]
+    assert media == (
+        image, image, image,
+        {"type": "image_url", "image_url": {"url": "data:image/png;base64,IMAGE", "detail": "auto"}},
+        {"type": "image_url", "image_url": {"url": "data:application/octet-stream;base64,IMAGE", "detail": "auto"}},
+        {"type": "image_url", "image_url": {"url": "https://example.com/image.png", "detail": "auto"}},
+    )
+    assert request == original
+
+
+def test_tpm_projection_preserves_non_media_identity_and_opaque_values() -> None:
+    image: Final = {"type": "input_image", "image_url": "data:image/png;base64,OPAQUE"}
+    request: Final = [
+        {"role": "user", "content": json.dumps(image)},
+        {"type": "custom_tool_call_output", "call_id": "call", "output": json.dumps(image)},
+        {"type": "function_call", "call_id": "call", "name": "keep", "arguments": {"content": [image]}},
+        {"type": "file_search_call", "results": [{"text": "keep", "content": [image]}]},
+        {"type": "image_generation_call", "id": "ig", "status": "in_progress", "result": None},
+        {"role": "user", "content": [
+            {"type": "document", "source": {"type": "base64", "media_type": "application/pdf", "data": "PDF"}},
+            {"type": "document", "source": {"type": "text", "data": json.dumps(image)}},
+            {"type": "file", "file": {"format": "application/pdf", "file_data": "PDF"}},
+            {"type": "text", "text": "keep", "metadata": {"content": [image]}},
+        ]},
+    ]
+    projected, media = split_media_for_tpm(request)
+    assert projected is request
+    assert media == ()
diff --git a/tests/unit/litellm_core_utils/test_audio_utils.py b/tests/unit/litellm_core_utils/test_audio_utils.py
index 155f6680416..122445e8e30 100644
--- a/tests/unit/litellm_core_utils/test_audio_utils.py
+++ b/tests/unit/litellm_core_utils/test_audio_utils.py
@@ -2,16 +2,23 @@
 Test the audio utils functionality in litellm_core_utils/audio_utils/utils.py
 """
 
+import base64
 import io
 import os
 import tempfile
+from typing import Final
 from unittest.mock import mock_open, patch
 
 import pytest
+import soundfile as sf
 
 from litellm.litellm_core_utils.audio_utils.utils import (
+    AUDIO_BYTES_PER_TOKEN,
+    AUDIO_TOKENS_PER_SECOND,
+    DEFAULT_AUDIO_TOKEN_ESTIMATE,
     ProcessedAudioFile,
     calculate_request_duration,
+    estimate_audio_tokens,
     get_audio_file_content_hash,
     get_audio_file_for_health_check,
     get_audio_file_name,
@@ -19,6 +26,63 @@ from litellm.litellm_core_utils.audio_utils.utils import (
 )
 
 
+def _encoded_audio(seconds: int, sample_rate: int, channels: int, container: str) -> str:
+    buffer: Final = io.BytesIO()
+    with sf.SoundFile(buffer, "w", samplerate=sample_rate, channels=channels, format=container) as audio:
+        audio.buffer_write(b"\0" * (seconds * sample_rate * channels * 2), dtype="int16")
+    return base64.b64encode(buffer.getvalue()).decode()
+
+
+@pytest.mark.parametrize(
+    ("sample_rate", "channels", "container"), [(8000, 1, "WAV"), (48000, 2, "WAV"), (24000, 1, "FLAC")]
+)
+def test_audio_estimate_uses_duration_independent_of_sample_rate_channels_and_compression(
+    sample_rate: int, channels: int, container: str
+) -> None:
+    assert estimate_audio_tokens(_encoded_audio(1, sample_rate, channels, container)) == AUDIO_TOKENS_PER_SECOND
+    assert estimate_audio_tokens(_encoded_audio(31, sample_rate, channels, container)) == 31 * AUDIO_TOKENS_PER_SECOND
+
+
+# Audio rates verified 2026-10-28: https://ai.google.dev/gemini-api/docs/generate-content/media-resolution and
+# https://developers.openai.com/api/docs/guides/voice-latency-cost
+@pytest.mark.parametrize(
+    ("models", "fallback", "expected"),
+    [
+        (("openai/gpt-audio-1.5",), "gemini-3.8-flash", 10),
+        (("gpt-audio-1.5", "gemini/gemini-3.8-flash"), None, 25),
+        (("vertex_ai/gemini-3.8-flash",), None, 25),
+        (("openrouter/google/gemini-3.8-flash",), None, 25),
+        (("azure/audio-deployment",), "gpt-audio-1.5", 10),
+        (("opaque-deployment",), "gemini-3.8-flash", 25),
+        ((), "gemini-3.8-flash", 25),
+        (("gemini/gemini-2.5-flash", "gemini/gemini-3-pro-preview"), None, 32),
+        (("other/gemini-3.8-flash",), None, 10),
+    ],
+)
+def test_audio_estimate_prefers_each_backend_rate_over_the_requested_model(
+    models: tuple[str, ...], fallback: str | None, expected: int
+) -> None:
+    assert estimate_audio_tokens(_encoded_audio(1, 8000, 1, "WAV"), models, fallback) == expected
+
+
+@pytest.mark.parametrize("data", [None, "", "invalid-base64!", base64.b64encode(b"unreadable audio").decode()])
+def test_audio_estimate_retains_nonzero_fallback_for_unreadable_audio(data: str | None) -> None:
+    assert estimate_audio_tokens(data) == DEFAULT_AUDIO_TOKEN_ESTIMATE
+
+
+def test_audio_estimate_retains_size_based_fallback_for_large_unreadable_audio() -> None:
+    data: Final = base64.b64encode(b"\0" * (AUDIO_BYTES_PER_TOKEN * 400)).decode()
+    assert estimate_audio_tokens(data) == 400
+
+
+def test_audio_estimate_bounds_base64_allocation_before_decoding() -> None:
+    data: Final = base64.b64encode(b"\0" * (16 * 1024 * 1024 + 1)).decode()
+    with patch("base64.b64decode", side_effect=AssertionError("oversized audio must not be decoded")) as decode:
+        estimate: Final = estimate_audio_tokens(data)
+    assert estimate == len(data) * 3 // 4 // AUDIO_BYTES_PER_TOKEN
+    decode.assert_not_called()
+
+
 class TestProcessAudioFile:
     """Test the process_audio_file function with various input types"""
 
diff --git a/tests/unit/litellm_core_utils/test_token_counter.py b/tests/unit/litellm_core_utils/test_token_counter.py
index 92f971f64e9..b02e0732817 100644
--- a/tests/unit/litellm_core_utils/test_token_counter.py
+++ b/tests/unit/litellm_core_utils/test_token_counter.py
@@ -37,6 +37,7 @@ from litellm.litellm_core_utils.token_counter import (
     _get_extrapolating_count_function,
     _get_tiktoken_count_function,
     calculate_img_tokens,
+    estimate_image_tokens,
     high_detail_image_token_upper_bound,
     offload_token_count,
 )
@@ -2152,6 +2153,136 @@ def test_high_detail_image_token_upper_bound_is_reached_by_the_largest_high_res_
     assert calculate_img_tokens(_png_data_url(1, 1), mode="high") < high_detail_image_token_upper_bound()
 
 
+# Image sizing verified 2026-10-28: https://developers.openai.com/api/docs/guides/images-vision
+# and https://platform.claude.com/docs/en/build-with-claude/vision-coordinates
+@pytest.mark.parametrize(
+    ("model", "width", "height", "detail", "expected"),
+    [
+        ("gpt-4o-mini", 1024, 1024, "low", 2833),
+        ("gpt-4o-mini", 1024, 1024, "high", 25501),
+        ("gpt-5.1", 512, 512, "auto", 210),
+        ("gpt-6-astra", 2048, 2048, "high", 3000),
+        ("gpt-6-astra", 4096, 512, "high", 2458),
+        ("gpt-6-astra", 2048, 2048, "auto", 4916),
+        ("gpt-5.6-sol", 2048, 2048, "low", 308),
+        ("gpt-5.5", 6400, 6400, "original", 12000),
+        ("gpt-5.4-mini", 2048, 2048, "low", 4916),
+        ("gpt-5.4-nano", 2048, 2048, "auto", 3000),
+        ("gpt-5.2", 4096, 512, "auto", 615),
+        ("gpt-4.1-mini-2025-04-14", 1024, 1024, "low", 1659),
+        ("claude-haiku-5-5", 200, 200, "auto", 64),
+        ("anthropic/claude-haiku-5-5", 1024, 1024, "auto", 1369),
+        ("claude-haiku-5-5", 1920, 1080, "low", 2691),
+        ("claude-haiku-4-5", 1920, 1080, "auto", 1560),
+        ("claude-haiku-4-5", 1075, 1520, "auto", 1551),
+        ("claude-haiku-5-5", 3840, 2160, "auto", 4784),
+        ("claude-haiku-5-5", 8000, 100, "auto", 184),
+    ],
+)
+def test_image_estimate_uses_model_resolution_and_detail(
+    model: str, width: int, height: int, detail: str, expected: int
+) -> None:
+    assert estimate_image_tokens(model, _png_data_url(width, height), detail) == expected
+
+
+@pytest.mark.parametrize(
+    ("models", "fallback", "expected_model"),
+    [
+        (("azure/deployment-prod",), "gpt-4o", "gpt-4o"),
+        (("openai/gpt-4o",), "gpt-4o-mini", "gpt-4o"),
+        (("azure/deployment-prod", "openai/gpt-4o"), "gpt-4o-mini", "gpt-4o-mini"),
+        (("openai/gpt-4o", "openrouter/openai/gpt-4o-mini"), None, "gpt-4o-mini"),
+        (("azure_ai/openai/gpt-6-astra",), None, "gpt-6-astra"),
+        (("azure/gpt-41",), None, "gpt-4.1"),
+        (("azure/eu/gpt-4o-mini",), None, "gpt-4o-mini"),
+        (("unknown", "gpt-4o-mini"), None, "gpt-4o-mini"),
+        ((), "gpt-6-astra", "gpt-6-astra"),
+        (("other/gpt-4o-mini",), None, "unregistered-model"),
+        (("azure/opaque/gpt-4o-mini",), None, "unregistered-model"),
+        (("bedrock/anthropic.claude-haiku-5-5",), None, "claude-haiku-5-5"),
+        (("bedrock/us.anthropic.claude-sonnet-4-20250514-v1:0",), None, "claude-haiku-4-5"),
+        (("vertex_ai/claude-haiku-5-5@default",), None, "claude-haiku-5-5"),
+        (("azure_ai/claude-haiku-5-5",), None, "claude-haiku-5-5"),
+        (("anthropic/claude-haiku-5-5", "openai/gpt-4o"), "gpt-4o-mini", "claude-haiku-5-5"),
+        (("other/claude-haiku-5-5",), None, "unregistered-model"),
+    ],
+)
+def test_image_estimate_prefers_each_backend_policy_over_the_requested_model(
+    models: tuple[str, ...], fallback: str | None, expected_model: str
+) -> None:
+    data: Final = _png_data_url(1024, 1024)
+    assert estimate_image_tokens(models, data, "high", fallback_model=fallback) == estimate_image_tokens(
+        expected_model, data, "high"
+    )
+
+
+@pytest.mark.parametrize(
+    ("model", "detail"),
+    [
+        ("unknown", "high"),
+        ("claude-unregistered", "auto"),
+        ("gpt-4o", "original"),
+        ("gpt-5.2", "original"),
+        ("gpt-6-astra", "invalid"),
+    ],
+)
+def test_image_estimate_preserves_default_when_policy_is_unavailable(model: str, detail: str) -> None:
+    assert (
+        estimate_image_tokens(model, _png_data_url(1024, 1024), detail) == litellm.constants.DEFAULT_IMAGE_TOKEN_COUNT
+    )
+
+
+@pytest.mark.parametrize(
+    "data",
+    [
+        "https://image.invalid/photo.png",
+        "data:image/png;base64,invalid!",
+        "data:application/octet-stream;base64,bm90LWFuLWltYWdl",
+        "data:image/jpeg;base64,/9j/4AAQ",
+        "data:image/webp;base64,UklGRgAAAABXRUJQ",
+        _png_data_url(0, 1024),
+    ],
+)
+# Accepted patch limits verified 2026-10-28: https://developers.openai.com/api/docs/guides/images-vision
+# and https://platform.claude.com/docs/en/build-with-claude/vision
+@pytest.mark.parametrize(
+    ("model", "detail", "bound"),
+    [
+        ("gpt-4o", "high", high_detail_image_token_upper_bound()),
+        ("gpt-6-astra", "high", 3000),
+        ("gpt-6-astra", "auto", 36000),
+        ("claude-haiku-5-5", "auto", 4784),
+        ("claude-haiku-4-5", "auto", 1568),
+    ],
+)
+def test_image_estimate_uses_bounded_fallback_without_fetching_media(
+    data: str, model: str, detail: str, bound: int
+) -> None:
+    with patch("httpx.Client.send") as send:
+        estimate: Final = estimate_image_tokens(model, data, detail)
+    send.assert_not_called()
+    assert estimate == bound
+    assert estimate > estimate_image_tokens(model, _png_data_url(1024, 1024), detail)
+
+
+@pytest.mark.parametrize("container", ["PNG", "JPEG", "GIF", "WEBP"])
+def test_image_estimate_depends_on_dimensions_and_not_compressed_payload_size(container: str) -> None:
+    output: Final = io.BytesIO()
+    Image.new("RGB", (1024, 1024)).save(output, format=container)
+    data: Final = "data:application/octet-stream;base64," + base64.b64encode(output.getvalue()).decode()
+    assert estimate_image_tokens("gpt-6-astra", data) == estimate_image_tokens("gpt-6-astra", _png_data_url(1024, 1024))
+
+
+def test_image_estimate_bounds_header_decoding_for_large_inline_payloads() -> None:
+    header: Final = base64.b64decode(_png_data_url(1024, 1024).split(",", 1)[1])
+    data: Final = "data:image/png;base64," + base64.b64encode(header + b"\0" * 4_000_000).decode()
+    with patch("base64.b64decode", wraps=base64.b64decode) as decode_header:
+        estimate: Final = estimate_image_tokens("gpt-6-astra", data)
+    assert estimate == estimate_image_tokens("gpt-6-astra", _png_data_url(1024, 1024))
+    assert decode_header.call_count == 1
+    assert len(decode_header.call_args.args[0]) <= 65_536
+
+
 HUB_SETUP_SCRIPT: Final = """
 import json
 import sys
diff --git a/tests/unit/llms/openai_like/test_zerogpu_provider.py b/tests/unit/llms/openai_like/test_zerogpu_provider.py
new file mode 100644
index 00000000000..1021237c335
--- /dev/null
+++ b/tests/unit/llms/openai_like/test_zerogpu_provider.py
@@ -0,0 +1,239 @@
+import json
+from collections.abc import Mapping
+from typing import Final
+
+import httpx
+import pytest
+import respx
+from openai import OpenAI
+
+import litellm
+from litellm.litellm_core_utils.get_llm_provider_logic import get_llm_provider
+from litellm.proxy.auth.model_checks import get_provider_models
+
+ZEROGPU_API_BASE: Final = "https://api.zerogpu.ai/v1"
+
+ZEROGPU_MODELS: Final = (
+    "deepseek-v4.1-flash",
+    "glm-5.3-flash",
+    "gpt-4.1-mini",
+    "gpt-5.4-nano",
+    "gpt-5.6-luna",
+    "gpt-6-luna",
+    "gpt-oss-120b",
+    "LFM2.5-1.2B-Instruct",
+    "LFM2.5-1.2B-Thinking",
+    "llama-3.1-8b-instruct-fast",
+    "llama-3.2-3b-instruct-fast",
+    "qwen3-30b-a3b-fp8",
+    "qwen3.6-35b-a3b",
+)
+
+
+WEATHER_TOOL: Final = {
+    "type": "function",
+    "function": {
+        "name": "get_weather",
+        "parameters": {"type": "object", "properties": {"city": {"type": "string"}}},
+    },
+}
+
+
+class _RecordingZeroGPU:
+    def __init__(self, usage: Mapping[str, object]) -> None:
+        self.usage: Final = usage
+        self.requests: tuple[httpx.Request, ...] = ()
+
+    def respond(self, request: httpx.Request) -> httpx.Response:
+        self.requests = (*self.requests, request)
+        return httpx.Response(
+            200,
+            json={
+                "id": "chatcmpl-zerogpu",
+                "object": "chat.completion",
+                "created": 1234567890,
+                "model": json.loads(request.content)["model"],
+                "choices": [{"index": 0, "message": {"role": "assistant", "content": "hi"}, "finish_reason": "stop"}],
+                "usage": dict(self.usage),
+            },
+        )
+
+    def client(self) -> OpenAI:
+        return OpenAI(
+            api_key="zerogpu-test-key",
+            base_url=ZEROGPU_API_BASE,
+            http_client=httpx.Client(transport=httpx.MockTransport(self.respond)),
+        )
+
+
+def test_prefixed_model_reaches_zerogpu_chat_completions_without_the_prefix():
+    zerogpu: Final = _RecordingZeroGPU({"prompt_tokens": 3, "completion_tokens": 1, "total_tokens": 4})
+
+    with zerogpu.client() as client:
+        litellm.completion(
+            model="zerogpu/gpt-oss-120b",
+            messages=[{"role": "user", "content": "hello"}],
+            client=client,
+        )
+
+    assert len(zerogpu.requests) == 1
+    assert str(zerogpu.requests[0].url) == f"{ZEROGPU_API_BASE}/chat/completions"
+    assert json.loads(zerogpu.requests[0].content) == {
+        "model": "gpt-oss-120b",
+        "messages": [{"role": "user", "content": "hello"}],
+    }
+
+
+def test_responses_request_reaches_zerogpu_responses_natively():
+    with respx.mock() as upstream:
+        route: Final = upstream.post(f"{ZEROGPU_API_BASE}/responses").respond(
+            200,
+            json={
+                "id": "resp_zerogpu",
+                "object": "response",
+                "created_at": 1_792_000_000,
+                "model": "gpt-oss-120b",
+                "status": "completed",
+                "output": [
+                    {
+                        "id": "msg_zerogpu",
+                        "type": "message",
+                        "role": "assistant",
+                        "status": "completed",
+                        "content": [{"type": "output_text", "text": "hi", "annotations": []}],
+                    }
+                ],
+                "usage": {"input_tokens": 3, "output_tokens": 1, "total_tokens": 4},
+            },
+        )
+        response: Final = litellm.responses(model="zerogpu/gpt-oss-120b", input="hello", api_key="zerogpu-test-key")
+
+    body: Final = json.loads(route.calls.last.request.content)
+    assert body["model"] == "gpt-oss-120b"
+    assert body["input"] == "hello"
+    assert response.output[0].content[0].text == "hi"
+
+
+def test_anthropic_messages_request_is_bridged_to_zerogpu_chat_completions():
+    zerogpu: Final = _RecordingZeroGPU({"prompt_tokens": 3, "completion_tokens": 1, "total_tokens": 4})
+
+    with zerogpu.client() as client:
+        response: Final = litellm.anthropic.messages.create(
+            model="zerogpu/gpt-oss-120b",
+            messages=[{"role": "user", "content": "hello"}],
+            max_tokens=10,
+            client=client,
+        )
+
+    assert [str(request.url) for request in zerogpu.requests] == [f"{ZEROGPU_API_BASE}/chat/completions"]
+    assert json.loads(zerogpu.requests[0].content) == {
+        "model": "gpt-oss-120b",
+        "messages": [{"role": "user", "content": "hello"}],
+        "max_tokens": 10,
+    }
+    assert response["content"] == [{"type": "text", "text": "hi"}]
+
+
+@pytest.mark.parametrize("model", ZEROGPU_MODELS)
+def test_zerogpu_completion_is_charged_at_the_cost_map_rates(model: str):
+    usage: Final = {
+        "prompt_tokens": 1000,
+        "completion_tokens": 200,
+        "total_tokens": 1200,
+        "prompt_tokens_details": {"cached_tokens": 400},
+    }
+    zerogpu: Final = _RecordingZeroGPU(usage)
+
+    with zerogpu.client() as client:
+        response: Final = litellm.completion(
+            model=f"zerogpu/{model}",
+            messages=[{"role": "user", "content": "hello"}],
+            client=client,
+        )
+
+    rates: Final = litellm.model_cost[f"zerogpu/{model}"]
+    cached_rate: Final = rates.get("cache_read_input_token_cost", rates["input_cost_per_token"])
+    expected_cost: Final = (
+        600 * rates["input_cost_per_token"] + 400 * cached_rate + 200 * rates["output_cost_per_token"]
+    )
+    assert response._hidden_params["response_cost"] == pytest.approx(expected_cost)
+    assert expected_cost > 0
+
+
+@pytest.mark.parametrize("model", ZEROGPU_MODELS)
+def test_trim_messages_fits_zerogpu_history_into_the_model_context_window(model: str):
+    budget: Final = 20
+    trim_ratio: Final = budget / litellm.model_cost[f"zerogpu/{model}"]["max_input_tokens"]
+    messages: Final = [{"role": "user", "content": "lorem ipsum " * 300}]
+
+    trimmed: Final = litellm.utils.trim_messages(messages, model=f"zerogpu/{model}", trim_ratio=trim_ratio)
+
+    trimmed_tokens: Final = litellm.token_counter(model=f"zerogpu/{model}", messages=trimmed)
+    assert trimmed_tokens <= budget, trimmed
+
+
+@pytest.mark.parametrize(
+    ("model", "forwards_tools", "forwards_reasoning_effort"),
+    [
+        ("gpt-5.6-luna", True, True),
+        ("gpt-oss-120b", True, True),
+        ("qwen3.6-35b-a3b", True, True),
+        ("LFM2.5-1.2B-Instruct", False, False),
+    ],
+)
+def test_tools_and_reasoning_effort_reach_zerogpu_only_for_models_that_support_them(
+    model: str, forwards_tools: bool, forwards_reasoning_effort: bool
+):
+    zerogpu: Final = _RecordingZeroGPU({"prompt_tokens": 3, "completion_tokens": 1, "total_tokens": 4})
+
+    with zerogpu.client() as client:
+        litellm.completion(
+            model=f"zerogpu/{model}",
+            messages=[{"role": "user", "content": "weather in Paris?"}],
+            tools=[WEATHER_TOOL],
+            tool_choice="auto",
+            reasoning_effort="high",
+            drop_params=True,
+            client=client,
+        )
+
+    tools: Final = {"tools": [WEATHER_TOOL], "tool_choice": "auto"} if forwards_tools else {}
+    reasoning: Final = {"reasoning_effort": "high"} if forwards_reasoning_effort else {}
+    assert json.loads(zerogpu.requests[0].content) == {
+        "model": model,
+        "messages": [{"role": "user", "content": "weather in Paris?"}],
+        **tools,
+        **reasoning,
+    }
+
+
+@pytest.mark.parametrize("model", ZEROGPU_MODELS)
+def test_model_info_reports_the_reasoning_support_litellm_routes_with(model: str):
+    model_info: Final = litellm.get_model_info(f"zerogpu/{model}")
+
+    assert bool(model_info.get("supports_reasoning")) == litellm.utils.supports_reasoning(f"zerogpu/{model}")
+
+
+def test_zerogpu_key_and_base_come_from_zerogpu_env_vars(monkeypatch: pytest.MonkeyPatch):
+    monkeypatch.setenv("ZEROGPU_API_KEY", "zerogpu-env-key")
+    monkeypatch.delenv("ZEROGPU_API_BASE", raising=False)
+
+    assert get_llm_provider(model="zerogpu/gpt-oss-120b") == (
+        "gpt-oss-120b",
+        "zerogpu",
+        "zerogpu-env-key",
+        ZEROGPU_API_BASE,
+    )
+
+    monkeypatch.setenv("ZEROGPU_API_BASE", "https://zerogpu.internal.example/v1")
+
+    assert get_llm_provider(model="zerogpu/gpt-oss-120b")[3] == "https://zerogpu.internal.example/v1"
+
+
+def test_zerogpu_wildcard_lists_every_zerogpu_catalog_model():
+    catalog_models: Final = sorted(
+        key for key, row in litellm.model_cost.items() if row.get("litellm_provider") == "zerogpu"
+    )
+
+    assert catalog_models
+    assert sorted(get_provider_models("zerogpu") or []) == catalog_models
diff --git a/tests/unit/proxy/hooks/test_tpm_concurrent.py b/tests/unit/proxy/hooks/test_tpm_concurrent.py
index 3d1e494e36c..8245c261a12 100644
--- a/tests/unit/proxy/hooks/test_tpm_concurrent.py
+++ b/tests/unit/proxy/hooks/test_tpm_concurrent.py
@@ -15,28 +15,38 @@ Redis.
 """
 
 import asyncio
+import base64
+import copy
+import io
 import json
 from datetime import datetime, timedelta
 from typing import Any, Dict, Final
 
 import pytest
+import soundfile as sf
+from fastapi import HTTPException
+from PIL import Image
 
+from litellm import token_counter
 from litellm.caching.caching import DualCache
+from litellm.litellm_core_utils.token_counter import UnsupportedContentTypeError, estimate_image_tokens
 from litellm.proxy._types import UserAPIKeyAuth
 from litellm.proxy.hooks.parallel_request_limiter_v3 import (
+    _AUDIO_BYTES_PER_TOKEN,
+    DEFAULT_AUDIO_TOKEN_ESTIMATE,
     PROJECT_ITPM_DESCRIPTOR_KEY,
     PROJECT_OTPM_DESCRIPTOR_KEY,
     RateLimitedModel,
-    _AUDIO_BYTES_PER_TOKEN,
-    PROXY_MaxParallelRequestsHandler_v3 as RateLimitHandler,
-)
-from litellm.proxy.hooks.parallel_request_limiter_v3 import (
     _call_id_from_callback_kwargs,
     _request_stash,
     get_or_create_request_stash,
     get_request_stash,
 )
+from litellm.proxy.hooks.parallel_request_limiter_v3 import (
+    PROXY_MaxParallelRequestsHandler_v3 as RateLimitHandler,
+)
 from litellm.proxy.utils import InternalUsageCache, hash_token
+from litellm.router_utils.ptu_shares import PTUTeamCeiling
 from litellm.types.llms.openai import (
     InputTokensDetails,
     ResponseAPIUsage,
@@ -3775,3 +3785,284 @@ def test_reservation_counts_a_compaction_item_by_its_summary(rate_limiter):
     ) == handler._estimate_input_and_output_tokens(
         data={"model": "gpt-4o", "input": _COMPACTED_INPUT[2:], "max_output_tokens": 1}, call_type="aresponses"
     )
+
+
+_QUOTA_TEXT: Final = "a" * 400
+_QUOTA_JSON_TEXT: Final = '{"type":"input_image","image_url":"data:image/png;base64,AAAA"}'
+
+
+@pytest.mark.parametrize(
+    ("call_type", "request_data", "expected"),
+    [
+        ("acompletion", {"messages": [{"role": "user", "content": _QUOTA_TEXT}], "max_tokens": 16}, (100, 16)),
+        ("acompletion", {"messages": [{"role": "user", "content": _QUOTA_JSON_TEXT}], "max_tokens": 16}, (15, 16)),
+        (
+            "anthropic_messages",
+            {
+                "messages": [
+                    {
+                        "role": "user",
+                        "content": [
+                            {
+                                "type": "tool_result",
+                                "tool_use_id": "t",
+                                "content": [{"type": "text", "text": _QUOTA_TEXT}],
+                            }
+                        ],
+                    }
+                ],
+                "max_tokens": 16,
+            },
+            (0, 16),
+        ),
+        (
+            "acompletion",
+            {
+                "messages": [
+                    {
+                        "role": "assistant",
+                        "content": None,
+                        "tool_calls": [
+                            {"id": "t", "type": "function", "function": {"name": "f", "arguments": _QUOTA_TEXT}}
+                        ],
+                    }
+                ],
+                "max_tokens": 16,
+            },
+            (0, 16),
+        ),
+        ("aresponses", {"input": _QUOTA_TEXT, "max_output_tokens": 16}, (100, 16)),
+        ("aresponses", {"input": _QUOTA_TEXT, "instructions": "b" * 400, "max_output_tokens": 16}, (100, 16)),
+        (
+            "aresponses",
+            {"input": [{"role": "user", "content": _QUOTA_TEXT}], "instructions": "b" * 400, "max_output_tokens": 16},
+            (107, 16),
+        ),
+        (
+            "aresponses",
+            {
+                "input": [
+                    {
+                        "type": "file_search_call",
+                        "id": "f",
+                        "status": "completed",
+                        "queries": ["q"],
+                        "results": [
+                            {
+                                "file_id": "file_1",
+                                "filename": "result.txt",
+                                "attributes": {},
+                                "score": 1,
+                                "text": _QUOTA_TEXT,
+                            }
+                        ],
+                    }
+                ],
+                "max_output_tokens": 16,
+            },
+            (146, 16),
+        ),
+        (
+            "aresponses",
+            {
+                "input": [{"type": "custom_tool_call_output", "call_id": "t", "output": _QUOTA_JSON_TEXT}],
+                "max_output_tokens": 16,
+            },
+            (32, 16),
+        ),
+        ("aresponses", {"input": "", "instructions": "b" * 400}, (0, 0)),
+        ("aembedding", {"input": [_QUOTA_TEXT]}, (100, 0)),
+        ("atext_completion", {"prompt": [_QUOTA_TEXT], "max_tokens": 16}, (100, 16)),
+    ],
+)
+def test_media_correction_preserves_exact_non_media_reservations(
+    rate_limiter: tuple[RateLimitHandler, DualCache],
+    call_type: str,
+    request_data: dict[str, object],
+    expected: tuple[int, int],
+) -> None:
+    handler, _ = rate_limiter
+    assert handler._estimate_input_and_output_tokens(request_data, call_type=call_type) == expected
+
+
+def _quota_media_payload(kind: str, compressed: bool) -> str:
+    output: Final = io.BytesIO()
+    if kind == "image":
+        Image.new("RGB", (1024, 1024)).save(output, format="PNG", compress_level=9 if compressed else 0)
+    else:
+        sample_rate: Final = 8000 if compressed else 48000
+        with sf.SoundFile(output, "w", samplerate=sample_rate, channels=1, format="WAV") as audio:
+            audio.buffer_write(b"\0" * (sample_rate * 2), dtype="int16")
+    return base64.b64encode(output.getvalue()).decode()
+
+
+def _quota_media_request(kind: str, payload: str, call_type: str) -> dict[str, object]:
+    block: Final = (
+        {"type": "input_audio", "input_audio": {"data": payload, "format": "wav"}}
+        if kind == "audio"
+        else {"type": "input_image", "image_url": "data:image/png;base64," + payload}
+        if call_type == "aresponses"
+        else {"type": "image", "source": {"type": "base64", "media_type": "image/png", "data": payload}}
+        if call_type == "anthropic_messages"
+        else {"type": "image_url", "image_url": {"url": "data:image/png;base64," + payload}}
+    )
+    content: Final = (
+        [{"type": "tool_result", "tool_use_id": "t", "content": [block]}]
+        if call_type == "anthropic_messages"
+        else [block]
+    )
+    field: Final = "input" if call_type == "aresponses" else "messages"
+    return {
+        "model": "gpt-6-astra",
+        field: [{"role": "user", "content": content}],
+        "max_tokens": 16,
+        "max_output_tokens": 16,
+    }
+
+
+@pytest.mark.parametrize(
+    ("kind", "call_type"),
+    [
+        ("image", "acompletion"),
+        ("image", "aresponses"),
+        ("image", "anthropic_messages"),
+        ("audio", "acompletion"),
+        ("audio", "aresponses"),
+    ],
+)
+def test_media_reservation_is_independent_of_encoding_and_preserves_request(
+    rate_limiter: tuple[RateLimitHandler, DualCache], kind: str, call_type: str
+) -> None:
+    handler, _ = rate_limiter
+    compressed: Final = _quota_media_request(kind, _quota_media_payload(kind, True), call_type)
+    uncompressed: Final = _quota_media_request(kind, _quota_media_payload(kind, False), call_type)
+    original: Final = copy.deepcopy(uncompressed)
+    estimate: Final = handler._estimate_input_and_output_tokens(uncompressed, call_type=call_type)
+    assert estimate == handler._estimate_input_and_output_tokens(compressed, call_type=call_type)
+    assert estimate[0] > 0 and estimate[1] == 16
+    assert uncompressed == original
+
+
+@pytest.mark.asyncio
+@pytest.mark.parametrize("call_type", ["acompletion", "aresponses"])
+@pytest.mark.parametrize("limit", [1000, 20000])
+async def test_media_pre_call_rejects_tight_quota_and_reserves_sufficient_quota(
+    rate_limiter: tuple[RateLimitHandler, DualCache], call_type: str, limit: int
+) -> None:
+    handler, cache = rate_limiter
+    request: Final = {
+        key: value
+        for key, value in _quota_media_request("image", _quota_media_payload("image", True), call_type).items()
+        if key not in ("max_tokens", "max_output_tokens")
+    }
+    auth: Final = UserAPIKeyAuth(api_key=hash_token("sk-media-quota"), tpm_limit=limit)
+    if limit == 1000:
+        with pytest.raises(HTTPException) as error:
+            await handler.async_pre_call_hook(user_api_key_dict=auth, cache=cache, data=request, call_type=call_type)
+        assert error.value.status_code == 429
+        return
+    await handler.async_pre_call_hook(user_api_key_dict=auth, cache=cache, data=request, call_type=call_type)
+    stash: Final = get_request_stash()
+    assert stash is not None
+    expected: Final = handler._estimate_input_and_output_tokens(
+        request, call_type=call_type, min_configured_tpm_limit=limit
+    )
+    assert stash.reserved_tokens == sum(expected)
+    assert expected[0] > 1000 and expected[1] >= expected[0]
+
+
+@pytest.mark.asyncio
+async def test_ptu_pre_call_weights_media_input_and_output() -> None:
+    cache: Final = DualCache()
+    ceiling: Final = PTUTeamCeiling(
+        model_group="gpt-6-astra", tpm_limit=10000, output_to_input_ratio=4, cached_input_ratio=0
+    )
+
+    def resolve_ceiling(team: str, model: str) -> PTUTeamCeiling | None:
+        return ceiling if (team, model) == ("test-team", "gpt-6-astra") else None
+
+    handler: Final = RateLimitHandler(
+        internal_usage_cache=InternalUsageCache(cache), ptu_team_ceiling_resolver=resolve_ceiling
+    )
+    request: Final = _quota_media_request("image", _quota_media_payload("image", True), "acompletion")
+    await handler.async_pre_call_hook(
+        user_api_key_dict=UserAPIKeyAuth(api_key=hash_token("sk-media-ptu"), team_id="test-team"),
+        cache=cache,
+        data=request,
+        call_type="acompletion",
+    )
+    stash: Final = get_request_stash()
+    assert stash is not None
+    assert (
+        stash.ptu_reserved_tokens
+        == estimate_image_tokens("gpt-6-astra", "data:image/png;base64," + _quota_media_payload("image", True)) + 4 * 16
+    )
+
+
+@pytest.mark.asyncio
+async def test_project_fallback_keeps_legacy_audio_estimate_and_output_policy(
+    rate_limiter: tuple[RateLimitHandler, DualCache],
+) -> None:
+    handler, cache = rate_limiter
+    unsupported: Final = {"type": "unsupported_content"}
+    with pytest.raises(UnsupportedContentTypeError):
+        token_counter(model="gpt-6-astra", messages=[{"role": "user", "content": [unsupported]}])
+    request: Final = {
+        "model": "gpt-6-astra",
+        "messages": [
+            {
+                "role": "user",
+                "content": [
+                    unsupported,
+                    {
+                        "type": "input_audio",
+                        "input_audio": {"data": _quota_media_payload("audio", True), "format": "wav"},
+                    },
+                ],
+            }
+        ],
+    }
+    auth: Final = UserAPIKeyAuth(
+        api_key=hash_token("sk-media-project"),
+        project_id="media-project",
+        project_metadata={"model_itpm_limit": {"gpt-6-astra": 1000}, "model_otpm_limit": {"gpt-6-astra": 1000}},
+    )
+    await handler.async_pre_call_hook(user_api_key_dict=auth, cache=cache, data=request, call_type="acompletion")
+    stash: Final = get_request_stash()
+    assert stash is not None
+    assert stash.itpm_reserved_tokens == DEFAULT_AUDIO_TOKEN_ESTIMATE
+    assert stash.otpm_reserved_tokens == 1
+
+
+@pytest.mark.asyncio
+async def test_single_anthropic_image_exceeds_tight_quota_with_explicit_output_cap(
+    rate_limiter: tuple[RateLimitHandler, DualCache],
+) -> None:
+    handler, cache = rate_limiter
+    request: Final = {
+        "model": "anthropic/claude-haiku-5-5",
+        "messages": [
+            {
+                "role": "user",
+                "content": [
+                    {
+                        "type": "image",
+                        "source": {
+                            "type": "base64",
+                            "media_type": "image/png",
+                            "data": _quota_media_payload("image", True),
+                        },
+                    }
+                ],
+            }
+        ],
+        "max_tokens": 64,
+    }
+    with pytest.raises(HTTPException) as error:
+        await handler.async_pre_call_hook(
+            user_api_key_dict=UserAPIKeyAuth(api_key=hash_token("sk-claude-media-quota"), tpm_limit=500),
+            cache=cache,
+            data=request,
+            call_type="anthropic_messages",
+        )
+    assert error.value.status_code == 429
diff --git a/tests/unit/proxy/public_endpoints/test_public_endpoints.py b/tests/unit/proxy/public_endpoints/test_public_endpoints.py
index f60c2254b41..d55ce25d878 100644
--- a/tests/unit/proxy/public_endpoints/test_public_endpoints.py
+++ b/tests/unit/proxy/public_endpoints/test_public_endpoints.py
@@ -363,6 +363,26 @@ def test_cognition_provider_fields():
     assert fields_by_key["api_base"]["required"] is False
 
 
+def test_zerogpu_add_model_form_defaults_resolve_to_a_priced_zerogpu_model():
+    import litellm
+    from litellm.litellm_core_utils.get_llm_provider_logic import get_llm_provider
+
+    app_instance: Final = FastAPI()
+    app_instance.include_router(router)
+    providers: Final = TestClient(app_instance).get("/public/providers/fields").json()
+
+    zerogpu: Final = next(p for p in providers if p["litellm_provider"] == "zerogpu")
+    fields_by_key: Final = {f["key"]: f for f in zerogpu["credential_fields"]}
+    placeholder: Final = zerogpu["default_model_placeholder"]
+    _, provider, _, api_base = get_llm_provider(model=placeholder)
+
+    assert provider == "zerogpu"
+    assert api_base == fields_by_key["api_base"]["placeholder"]
+    assert litellm.model_cost[placeholder]["litellm_provider"] == "zerogpu"
+    assert fields_by_key["api_key"]["required"] is True
+    assert fields_by_key["api_key"]["field_type"] == "password"
+
+
 def test_qwen_mainland_provider_fields_carry_the_qianwen_brand():
     app_instance = FastAPI()
     app_instance.include_router(router)
diff --git a/tests/unit/test_main.py b/tests/unit/test_main.py
index ba39fc3f5ac..f38bbcf4404 100644
--- a/tests/unit/test_main.py
+++ b/tests/unit/test_main.py
@@ -2127,6 +2127,330 @@ def test_responses_bridge_preserves_reasoning_effort_with_drop_params(
     assert request_body["reasoning"] == {"effort": "high"}
 
 
+@pytest.fixture
+def openai_responses_route(
+    restore_model_registry, respx_mock: respx.MockRouter, monkeypatch: pytest.MonkeyPatch
+) -> respx.Route:
+    monkeypatch.setattr(litellm, "disable_aiohttp_transport", True)
+    monkeypatch.delenv("LITELLM_REASONING_AUTO_SUMMARY", raising=False)
+    litellm.register_model(
+        {
+            "gpt-6.1-terra": {
+                "litellm_provider": "openai",
+                "mode": "chat",
+                "supports_reasoning": True,
+                "supports_minimal_reasoning_effort": False,
+                "reasoning_modes": ["standard", "pro"],
+                "reasoning_contexts": ["auto", "current_turn", "all_turns"],
+                "input_cost_per_token": 0.0,
+                "output_cost_per_token": 0.0,
+            }
+        },
+        persist_across_reloads=False,
+    )
+    return respx_mock.post("https://api.openai.com/v1/responses").respond(
+        json={
+            "id": "resp_test",
+            "object": "response",
+            "created_at": 1734366691,
+            "status": "completed",
+            "model": "gpt-6.1-terra",
+            "output": [
+                {
+                    "type": "message",
+                    "id": "msg_1",
+                    "status": "completed",
+                    "role": "assistant",
+                    "content": [{"type": "output_text", "text": "Done.", "annotations": []}],
+                }
+            ],
+            "usage": {"input_tokens": 1, "output_tokens": 1, "total_tokens": 2},
+        }
+    )
+
+
+@pytest.mark.parametrize(
+    ("reasoning_effort", "summary_alias", "expected_reasoning"),
+    [
+        (
+            {"effort": "low", "mode": "pro", "context": "current_turn"},
+            {},
+            {"effort": "low", "mode": "pro", "context": "current_turn"},
+        ),
+        (
+            {"effort": "low", "mode": "pro", "context": "current_turn"},
+            {"reasoning_summary": "auto"},
+            {"effort": "low", "mode": "pro", "context": "current_turn", "summary": "auto"},
+        ),
+        (
+            {"effort": "low", "mode": "pro", "summary": "concise"},
+            {"reasoningSummary": "auto"},
+            {"effort": "low", "mode": "pro", "summary": "concise"},
+        ),
+        (
+            {"effort": "low", "context": "current_turn", "summary": None},
+            {"reasoning_summary": "auto"},
+            {"effort": "low", "context": "current_turn", "summary": None},
+        ),
+        ({"mode": "pro", "context": "all_turns"}, {}, {"mode": "pro", "context": "all_turns"}),
+        ("low", {}, {"effort": "low"}),
+    ],
+)
+def test_openai_responses_bridge_sends_the_whole_reasoning_effort_dict(
+    reasoning_effort: str | dict[str, str | None],
+    summary_alias: dict[str, str],
+    expected_reasoning: dict[str, str | None],
+    openai_responses_route: respx.Route,
+):
+    caller_reasoning_effort: Final = copy.deepcopy(reasoning_effort)
+
+    litellm.completion(
+        model="openai/responses/gpt-6.1-terra",
+        messages=[{"role": "user", "content": "hello"}],
+        reasoning_effort=reasoning_effort,
+        api_key="fake-key",
+        **summary_alias,
+    )
+
+    request_body: Final = json.loads(openai_responses_route.calls[0].request.content)
+    assert request_body["reasoning"] == expected_reasoning
+    assert reasoning_effort == caller_reasoning_effort
+
+
+@pytest.mark.parametrize(
+    "reasoning_effort, summary_alias, expected_reasoning",
+    [
+        (
+            {"effort": "minimal", "mode": "pro", "context": "current_turn"},
+            {},
+            {"mode": "pro", "context": "current_turn"},
+        ),
+        ({"effort": "minimal", "mode": "pro", "summary": "auto"}, {}, {"mode": "pro", "summary": "auto"}),
+        ({"effort": "minimal", "mode": "pro"}, {"reasoning_summary": "auto"}, {"mode": "pro", "summary": "auto"}),
+    ],
+)
+def test_openai_responses_bridge_drops_only_a_refused_effort_under_drop_params(
+    reasoning_effort: dict[str, str],
+    summary_alias: dict[str, str],
+    expected_reasoning: dict[str, str],
+    openai_responses_route: respx.Route,
+):
+    litellm.completion(
+        model="openai/responses/gpt-6.1-terra",
+        messages=[{"role": "user", "content": "hello"}],
+        reasoning_effort=reasoning_effort,
+        drop_params=True,
+        api_key="fake-key",
+        **summary_alias,
+    )
+
+    request_body: Final = json.loads(openai_responses_route.calls[0].request.content)
+    assert request_body["reasoning"] == expected_reasoning
+
+
+def test_openai_responses_bridge_drops_a_reasoning_effort_dict_for_a_model_without_reasoning(
+    openai_responses_route: respx.Route,
+):
+    litellm.completion(
+        model="openai/responses/gpt-4.1",
+        messages=[{"role": "user", "content": "hello"}],
+        reasoning_effort={"effort": "low", "mode": "pro", "context": "current_turn"},
+        drop_params=True,
+        api_key="fake-key",
+    )
+
+    request_body: Final = json.loads(openai_responses_route.calls[0].request.content)
+    assert "reasoning" not in request_body
+
+
+@pytest.mark.parametrize(
+    "drop_params, expected_reasoning",
+    [
+        (True, {"effort": "low", "context": "current_turn"}),
+        (
+            False,
+            {
+                "effort": "low",
+                "exclude": False,
+                "mode": "turbo",
+                "context": "current_turn",
+                "generate_summary": "concise",
+            },
+        ),
+    ],
+)
+def test_openai_responses_bridge_drops_reasoning_fields_openai_refuses_only_under_drop_params(
+    drop_params: bool,
+    expected_reasoning: dict[str, object],
+    openai_responses_route: respx.Route,
+):
+    litellm.completion(
+        model="openai/responses/gpt-6.1-terra",
+        messages=[{"role": "user", "content": "hello"}],
+        reasoning_effort={
+            "effort": "low",
+            "exclude": False,
+            "mode": "turbo",
+            "context": "current_turn",
+            "generate_summary": "concise",
+        },
+        drop_params=drop_params,
+        api_key="fake-key",
+    )
+
+    request_body: Final = json.loads(openai_responses_route.calls[0].request.content)
+    assert request_body["reasoning"] == expected_reasoning
+
+
+@pytest.mark.parametrize(
+    "declared, drop_params, expected_reasoning",
+    [
+        (
+            {"reasoning_modes": ["standard"], "reasoning_contexts": ["auto", "current_turn"]},
+            True,
+            {"effort": "low"},
+        ),
+        (
+            {"reasoning_modes": ["pro"], "reasoning_contexts": ["all_turns"]},
+            True,
+            {"effort": "low", "mode": "pro", "context": "all_turns"},
+        ),
+        ({}, True, {"effort": "low", "mode": "pro", "context": "all_turns"}),
+        ({"reasoning_modes": ["standard"]}, True, {"effort": "low", "context": "all_turns"}),
+        (
+            {"reasoning_modes": ["standard"], "reasoning_contexts": ["auto", "current_turn"]},
+            False,
+            {"effort": "low", "mode": "pro", "context": "all_turns"},
+        ),
+    ],
+)
+def test_openai_responses_bridge_drops_a_mode_or_context_the_model_does_not_list_only_under_drop_params(
+    declared: dict[str, list[str]],
+    drop_params: bool,
+    expected_reasoning: dict[str, str],
+    openai_responses_route: respx.Route,
+):
+    litellm.register_model(
+        {
+            "gpt-6.1-reasoning-test": {
+                "litellm_provider": "openai",
+                "mode": "chat",
+                "supports_reasoning": True,
+                "input_cost_per_token": 0.0,
+                "output_cost_per_token": 0.0,
+                **declared,
+            }
+        },
+        persist_across_reloads=False,
+    )
+
+    litellm.completion(
+        model="openai/responses/gpt-6.1-reasoning-test",
+        messages=[{"role": "user", "content": "hello"}],
+        reasoning_effort={"effort": "low", "mode": "pro", "context": "all_turns"},
+        drop_params=drop_params,
+        api_key="fake-key",
+    )
+
+    request_body: Final = json.loads(openai_responses_route.calls[0].request.content)
+    assert request_body["reasoning"] == expected_reasoning
+
+
+def test_openai_responses_bridge_forwards_mode_and_context_under_drop_params_for_a_catalog_model_with_no_cost_entry(
+    openai_responses_route: respx.Route,
+):
+    litellm.open_ai_chat_completion_models.add("unpriced-reasoning-model")
+
+    litellm.completion(
+        model="openai/responses/unpriced-reasoning-model",
+        messages=[{"role": "user", "content": "hello"}],
+        reasoning_effort={"effort": "low", "mode": "pro", "context": "all_turns", "generate_summary": "auto"},
+        drop_params=True,
+        api_key="fake-key",
+    )
+
+    request_body: Final = json.loads(openai_responses_route.calls[0].request.content)
+    assert request_body["reasoning"] == {"effort": "low", "mode": "pro", "context": "all_turns"}
+
+
+def test_openai_responses_bridge_forwards_a_reasoning_effort_dict_whole_for_a_model_outside_the_openai_catalog(
+    openai_responses_route: respx.Route,
+):
+    reasoning_effort: Final = {"effort": "high", "exclude": True, "budget_tokens": 2000}
+
+    litellm.completion(
+        model="openai/responses/my-proxy-alias",
+        messages=[{"role": "user", "content": "hello"}],
+        reasoning_effort=reasoning_effort,
+        drop_params=True,
+        api_key="fake-key",
+    )
+
+    request_body: Final = json.loads(openai_responses_route.calls[0].request.content)
+    assert request_body["reasoning"] == reasoning_effort
+
+
+@pytest.mark.parametrize(
+    "additional_drop_params, summary_alias, expected_reasoning",
+    [
+        (["reasoning_effort.mode"], {}, {"effort": "low", "context": "current_turn"}),
+        (
+            ["reasoning_effort.summary"],
+            {"reasoning_summary": "auto"},
+            {"effort": "low", "mode": "pro", "context": "current_turn"},
+        ),
+        (["reasoning_effort"], {"reasoning_summary": "auto"}, None),
+        ("reasoning_effort", {}, {"effort": "low", "mode": "pro", "context": "current_turn"}),
+    ],
+)
+def test_openai_responses_bridge_applies_additional_drop_params_to_a_reasoning_effort_dict(
+    additional_drop_params: list[str] | str,
+    summary_alias: dict[str, str],
+    expected_reasoning: dict[str, str] | None,
+    openai_responses_route: respx.Route,
+):
+    litellm.completion(
+        model="openai/responses/gpt-6.1-terra",
+        messages=[{"role": "user", "content": "hello"}],
+        reasoning_effort={"effort": "low", "mode": "pro", "context": "current_turn"},
+        additional_drop_params=additional_drop_params,
+        api_key="fake-key",
+        **summary_alias,
+    )
+
+    request_body: Final = json.loads(openai_responses_route.calls[0].request.content)
+    assert request_body.get("reasoning") == expected_reasoning
+
+
+def test_openai_responses_bridge_gives_a_reasoning_effort_dict_the_auto_summary_a_string_gets(
+    openai_responses_route: respx.Route, monkeypatch: pytest.MonkeyPatch
+):
+    monkeypatch.setenv("LITELLM_REASONING_AUTO_SUMMARY", "true")
+    litellm.completion(
+        model="openai/responses/gpt-6.1-terra",
+        messages=[{"role": "user", "content": "hello"}],
+        reasoning_effort="low",
+        api_key="fake-key",
+    )
+    litellm.completion(
+        model="openai/responses/gpt-6.1-terra",
+        messages=[{"role": "user", "content": "hello"}],
+        reasoning_effort={"effort": "low", "mode": "pro", "context": "current_turn"},
+        api_key="fake-key",
+    )
+
+    string_reasoning, dict_reasoning = (
+        json.loads(call.request.content)["reasoning"] for call in openai_responses_route.calls
+    )
+    assert string_reasoning["summary"] is not None
+    assert dict_reasoning == {
+        "effort": "low",
+        "mode": "pro",
+        "context": "current_turn",
+        "summary": string_reasoning["summary"],
+    }
+
+
 _BRIDGED_RESPONSE_ANSWER: Final = json.dumps(
     {
         "id": "resp_slow",
diff --git a/tests/unit/test_model_prices_and_context_window.py b/tests/unit/test_model_prices_and_context_window.py
index bbfe304429d..2aceed493a7 100644
--- a/tests/unit/test_model_prices_and_context_window.py
+++ b/tests/unit/test_model_prices_and_context_window.py
@@ -115,6 +115,23 @@ def test_github_copilot_backup_rows_match_the_main_catalog() -> None:
     assert _github_copilot_catalog_rows(PRICES_PATH) == _github_copilot_catalog_rows(BACKUP_PRICES_PATH)
 
 
+class _TokenLimits(BaseModel):
+    model_config = ConfigDict(frozen=True, extra="ignore")
+
+    max_input_tokens: int
+    max_output_tokens: int
+
+
+@pytest.mark.parametrize("path", (PRICES_PATH, BACKUP_PRICES_PATH), ids=("main", "backup"))
+def test_zerogpu_rows_have_an_output_limit_that_fits_the_context_window(path: Path) -> None:
+    prices: Final[dict[str, JsonValue]] = TypeAdapter(dict[str, JsonValue]).validate_json(path.read_bytes())
+    rows: Final = MappingProxyType(
+        {key: _TokenLimits.model_validate(value) for key, value in prices.items() if key.startswith("zerogpu/")}
+    )
+    assert rows, f"No ZeroGPU rows found in {path}"
+    assert tuple(key for key, row in rows.items() if row.max_output_tokens > row.max_input_tokens) == ()
+
+
 def test_github_copilot_rows_resolve_through_get_model_info() -> None:
     rows: Final[Mapping[str, _CopilotEndpointRow]] = _copilot_endpoint_rows(PRICES_PATH)
     assert {
diff --git a/tests/unit/test_router/test_router.py b/tests/unit/test_router/test_router.py
index 63ee1c43edb..566024b5d94 100644
--- a/tests/unit/test_router/test_router.py
+++ b/tests/unit/test_router/test_router.py
@@ -20630,6 +20630,37 @@ def test_resolved_litellm_models_answers_through_every_channel_a_request_uses(
     assert set(_resolution_router().resolved_litellm_models(model_name)) == set(expected)
 
 
+def test_resolved_litellm_models_base_model_precedence_is_opt_in() -> None:
+    router: Final = Router(
+        model_list=[
+            {
+                "model_name": "pooled",
+                "litellm_params": {"model": "openai/deployment-a", "api_key": "sk-test", "base_model": "gpt-5.5"},
+                "model_info": {"base_model": "gpt-6-astra"},
+            },
+            {
+                "model_name": "pooled",
+                "litellm_params": {"model": "openai/deployment-b", "api_key": "sk-test", "base_model": "gpt-5.6-sol"},
+            },
+            {
+                "model_name": "team-deployment",
+                "litellm_params": {"model": "openai/deployment-c", "api_key": "sk-test"},
+                "model_info": {
+                    "base_model": "gpt-6-astra",
+                    "team_id": "test-team",
+                    "team_public_model_name": "team-model",
+                },
+            },
+        ],
+        model_group_alias={"nickname": "pooled"},
+    )
+    assert router.resolved_litellm_models("nickname") == ("openai/deployment-a", "openai/deployment-b")
+    assert router.resolved_litellm_models("nickname", use_base_model=True) == ("gpt-6-astra", "gpt-5.6-sol")
+    assert router.resolved_litellm_models("team-model", "test-team") == ("openai/deployment-c",)
+    assert router.resolved_litellm_models("team-model", "test-team", use_base_model=True) == ("gpt-6-astra",)
+    assert router.resolved_litellm_models("never-configured", use_base_model=True) == ()
+
+
 class TestTierParamsTheTargetAccepts:
     """A tier's litellm_params are applied to every request that tier routes, so one the target
     cannot take raised UnsupportedParamsError before the request left the proxy, turning the whole
diff --git a/tests/unit/test_utils.py b/tests/unit/test_utils.py
index 38287b25169..146e2df6413 100644
--- a/tests/unit/test_utils.py
+++ b/tests/unit/test_utils.py
@@ -1195,6 +1195,8 @@ _COST_MAP_ROW_SCHEMA: Final = {
                 "type": "array",
                 "items": {"type": "string", "enum": ["none", "minimal", "low", "medium", "high", "xhigh", "max"]},
             },
+            "reasoning_modes": {"type": "array", "items": {"type": "string"}},
+            "reasoning_contexts": {"type": "array", "items": {"type": "string"}},
             "default_reasoning_effort": {
                 "type": "string",
                 "enum": ["none", "minimal", "low", "medium", "high", "xhigh"],
diff --git a/ui/litellm-dashboard/src/components/provider_info_helpers.test.tsx b/ui/litellm-dashboard/src/components/provider_info_helpers.test.tsx
index 0ebd2cdff17..83e80911cff 100644
--- a/ui/litellm-dashboard/src/components/provider_info_helpers.test.tsx
+++ b/ui/litellm-dashboard/src/components/provider_info_helpers.test.tsx
@@ -224,6 +224,7 @@ describe("provider_info_helpers", () => {
         Providers.Sail,
         Providers.WANDB,
         Providers.ZAI,
+        Providers.ZeroGPU,
       ];
       const logolessProviders = Object.values(Providers).filter((provider) => !providerLogoMap[provider]);
       expect([...logolessProviders].sort()).toEqual([...knownLogolessProviders].sort());
@@ -357,6 +358,10 @@ describe("provider_info_helpers", () => {
       expect(getPlaceholder(Providers.Cognition)).toBe("cognition/swe-1.7");
     });
 
+    it("should return zerogpu/gpt-oss-120b placeholder for ZeroGPU provider", () => {
+      expect(getPlaceholder("ZeroGPU")).toBe("zerogpu/gpt-oss-120b");
+    });
+
     it("should return a chatgpt/ placeholder for the CHATGPT dropdown key", () => {
       expect(getPlaceholder("CHATGPT")).toBe("chatgpt/gpt-5.4");
     });
diff --git a/ui/litellm-dashboard/src/components/provider_info_helpers.tsx b/ui/litellm-dashboard/src/components/provider_info_helpers.tsx
index 2541aa45050..bfb578b218a 100644
--- a/ui/litellm-dashboard/src/components/provider_info_helpers.tsx
+++ b/ui/litellm-dashboard/src/components/provider_info_helpers.tsx
@@ -197,6 +197,7 @@ export enum Providers {
   xAI = "xAI",
   XINFERENCE = "Xinference",
   ZAI = "Z.AI (Zhipu AI)",
+  ZeroGPU = "ZeroGPU",
 }
 
 export const provider_map: Record<string, string> = {
@@ -325,6 +326,7 @@ export const provider_map: Record<string, string> = {
   xAI: "xai",
   XINFERENCE: "xinference",
   ZAI: "zai",
+  ZeroGPU: "zerogpu",
 };
 
 const standaloneSubproviderSlugs = new Set<string>(["bedrock_mantle"]);
@@ -497,6 +499,7 @@ const providerPlaceholderMap: Partial<Record<Providers, string>> = {
   [Providers.Voyage]: "voyage/",
   [Providers.WATSONX]: "watsonx/ibm/granite-3-3-8b-instruct",
   [Providers.ZAI]: "zai/glm-4.5",
+  [Providers.ZeroGPU]: "zerogpu/gpt-oss-120b",
 };
 
 export const getPlaceholder = (selectedProvider: string): string => {