litellm/tests/test_litellm/test_claude_opus_5_config.py

263 lines
11 KiB
Python

"""
Validate Claude Opus 5 model configuration entries.
Opus 5 carries Opus 4.8's pricing ($5 / $25 per MTok) and the gen-5 adaptive
thinking profile, but differs from 4.8 in two ways that are behavior-bearing in
LiteLLM: the cacheable-prefix minimum drops to 512 tokens, and Bedrock's Opus 5
validator accepts the full effort ladder, so the entries must not carry the
``bedrock_output_config_effort_ceiling`` that silently clamps ``max`` to
``xhigh`` on 4.8. The cost-map entries are also what populate
``litellm.anthropic_models`` at import, which is what lets a bare
``claude-opus-5`` name resolve to the ``anthropic`` provider (and match an
``anthropic/*`` wildcard deployment).
"""
import json
import os
import pytest
import litellm
from litellm.constants import BEDROCK_CONVERSE_MODELS
from litellm.litellm_core_utils.get_model_cost_map import GetModelCostMap
REPO_ROOT = os.path.join(os.path.dirname(__file__), "../..")
ALL_OPUS_5_VARIANTS = (
"claude-opus-5",
"anthropic.claude-opus-5",
"global.anthropic.claude-opus-5",
"us.anthropic.claude-opus-5",
"eu.anthropic.claude-opus-5",
"au.anthropic.claude-opus-5",
"jp.anthropic.claude-opus-5",
"vertex_ai/claude-opus-5",
"vertex_ai/claude-opus-5@default",
"azure_ai/claude-opus-5",
)
BEDROCK_OPUS_5_VARIANTS = (
"anthropic.claude-opus-5",
"global.anthropic.claude-opus-5",
"us.anthropic.claude-opus-5",
"eu.anthropic.claude-opus-5",
"au.anthropic.claude-opus-5",
"jp.anthropic.claude-opus-5",
)
def _load_root_cost_map() -> dict:
json_path = os.path.join(REPO_ROOT, "model_prices_and_context_window.json")
with open(json_path) as f:
return json.load(f)
def test_opus_5_pricing_and_capabilities():
model_data = _load_root_cost_map()
expected_providers = {
"claude-opus-5": "anthropic",
"anthropic.claude-opus-5": "bedrock_converse",
"vertex_ai/claude-opus-5": "vertex_ai-anthropic_models",
"azure_ai/claude-opus-5": "azure_ai",
}
for model_name, provider in expected_providers.items():
assert model_name in model_data, f"Missing model entry: {model_name}"
info = model_data[model_name]
assert info["litellm_provider"] == provider
assert info["mode"] == "chat"
assert info["max_input_tokens"] == 1000000
assert info["max_output_tokens"] == 128000
assert info["max_tokens"] == 128000
# Opus 5 ships at Opus 4.8's rates: $5 / $25 per MTok, with the standard
# 1.25x cache-write, 2x 1-hour cache-write, and 0.1x cache-read multipliers.
assert info["input_cost_per_token"] == 5e-06
assert info["output_cost_per_token"] == 2.5e-05
assert info["cache_creation_input_token_cost"] == 6.25e-06
assert info["cache_creation_input_token_cost_above_1hr"] == 1e-05
assert info["cache_read_input_token_cost"] == 5e-07
# Flat rate across the full 1M window, no long-context premium.
assert "input_cost_per_token_above_200k_tokens" not in info
assert "output_cost_per_token_above_200k_tokens" not in info
# gen-5 adaptive-thinking profile: effort-driven, no sampling params, no
# assistant prefill.
assert info["supports_adaptive_thinking"] is True
assert info["supports_reasoning"] is True
assert info["supports_sampling_params"] is False
assert info["supports_assistant_prefill"] is False
assert info["supports_xhigh_reasoning_effort"] is True
assert info["supports_max_reasoning_effort"] is True
assert info["supports_function_calling"] is True
assert info["supports_prompt_caching"] is True
assert info["supports_tool_choice"] is True
assert info["supports_vision"] is True
def test_opus_5_bedrock_regional_pricing():
"""Global/base endpoints use base pricing; the us./eu./au./jp. regional
cross-region inference profiles carry a 10% premium."""
model_data = _load_root_cost_map()
base_pricing = {
"input_cost_per_token": 5e-06,
"output_cost_per_token": 2.5e-05,
"cache_creation_input_token_cost": 6.25e-06,
"cache_creation_input_token_cost_above_1hr": 1e-05,
"cache_read_input_token_cost": 5e-07,
}
regional_pricing = {
"input_cost_per_token": 5.5e-06,
"output_cost_per_token": 2.75e-05,
"cache_creation_input_token_cost": 6.875e-06,
"cache_creation_input_token_cost_above_1hr": 1.1e-05,
"cache_read_input_token_cost": 5.5e-07,
}
expected = {
"anthropic.claude-opus-5": base_pricing,
"global.anthropic.claude-opus-5": base_pricing,
"us.anthropic.claude-opus-5": regional_pricing,
"eu.anthropic.claude-opus-5": regional_pricing,
"au.anthropic.claude-opus-5": regional_pricing,
"jp.anthropic.claude-opus-5": regional_pricing,
}
for model_name, pricing in expected.items():
assert model_name in model_data, f"Missing model entry: {model_name}"
info = model_data[model_name]
assert info["litellm_provider"] == "bedrock_converse"
for key, value in pricing.items():
assert info[key] == value, f"{model_name}.{key} = {info[key]}, want {value}"
@pytest.mark.parametrize("model_name", BEDROCK_OPUS_5_VARIANTS)
def test_opus_5_bedrock_entries_declare_no_effort_ceiling(model_name):
"""Bedrock accepts every effort level for Opus 5, so no clamp belongs here.
Opus 4.7/4.8 carry ``bedrock_output_config_effort_ceiling: "xhigh"``, which
is what ``normalize_bedrock_opus_output_config_effort`` reads to rewrite a
caller's effort down. Verified against Bedrock on 2026-07-24 that
``output_config.effort="max"`` returns 200 for the Opus 5 profiles, so the
ceiling is deliberately absent; adding one back would silently downgrade
requests.
This asserts the cost-map entry rather than calling the normalizer because
``_BEDROCK_OUTPUT_CONFIG_EFFORT_ORDER`` currently ranks ``max`` (3) below
``xhigh`` (4), so an ``xhigh`` ceiling never clamps ``max`` and a behavioral
assertion would pass either way. Keeping the entry clean means Opus 5 stays
correct once that ordering is fixed."""
info = _load_root_cost_map()[model_name]
assert "bedrock_output_config_effort_ceiling" not in info
@pytest.mark.parametrize("model_name", BEDROCK_OPUS_5_VARIANTS)
def test_opus_5_bedrock_rejects_strict_tools(model_name, local_model_cost_map):
"""Bedrock Converse routes Opus through a validator that rejects
``toolSpec.strict`` (``tools.0.custom.strict: Extra inputs are not
permitted``), same as Opus 4.7/4.8; verified against Bedrock on 2026-07-24.
Without the flag LiteLLM forwards ``strict`` and every tool call 400s."""
from litellm.llms.bedrock.common_utils import bedrock_converse_supports_strict_tools
assert bedrock_converse_supports_strict_tools(model_name) is False
def test_opus_5_prompt_cache_minimum_is_512(local_model_cost_map):
"""Opus 5 halves the cacheable-prefix minimum (Opus 4.8 is 1024).
The router's prompt-caching deployment check reads this value, so a stale
1024 would route prompts of 512-1023 tokens away from a warm Opus 5
deployment even though they cache fine."""
from litellm.utils import get_prompt_cache_min_tokens
assert get_prompt_cache_min_tokens(model="claude-opus-5") == 512
assert get_prompt_cache_min_tokens(model="us.anthropic.claude-opus-5") == 512
def test_opus_5_supports_fast_mode(local_model_cost_map):
"""Fast mode is Opus 5 on the first-party API at $10 / $50 per MTok, i.e. 2x
base. ``supports_speed`` gates whether ``speed="fast"`` is forwarded at all,
and ``provider_specific_entry.fast`` is what prices the response."""
from litellm.llms.anthropic.chat.transformation import AnthropicConfig
from litellm.llms.anthropic.cost_calculation import (
cost_per_token as anthropic_cost_per_token,
)
from litellm.types.utils import Usage
assert (
AnthropicConfig._model_supports_speed_param("claude-opus-5", "anthropic") is True
)
usage = Usage(prompt_tokens=1000, completion_tokens=500, total_tokens=1500)
usage.speed = "fast"
prompt_cost, completion_cost = anthropic_cost_per_token(
model="claude-opus-5", usage=usage
)
assert prompt_cost == pytest.approx(1000 * 5e-06 * 2.0)
assert completion_cost == pytest.approx(500 * 2.5e-05 * 2.0)
def test_opus_5_present_in_bundled_backup():
"""The bundled backup is the runtime fallback (and what tests load with
``LITELLM_LOCAL_MODEL_COST_MAP=True``); it must carry the same entries as the
root cost map, otherwise the model resolves on one path but not the other."""
backup = GetModelCostMap.load_local_model_cost_map()
for model_name in ALL_OPUS_5_VARIANTS:
assert model_name in backup, f"Missing from backup cost map: {model_name}"
def test_opus_5_registered_for_bedrock_converse():
assert "anthropic.claude-opus-5" in BEDROCK_CONVERSE_MODELS
def test_opus_5_provider_resolves_via_model_info(local_model_cost_map):
"""Regression: ``claude-opus-5`` must resolve to provider ``anthropic``.
Without the cost-map entry the model is unknown to LiteLLM, so it cannot be
tied to the ``anthropic`` provider and an ``anthropic/*`` wildcard deployment
would not match it."""
info = litellm.get_model_info(model="claude-opus-5")
assert info["litellm_provider"] == "anthropic"
assert info["max_input_tokens"] == 1000000
assert info["max_output_tokens"] == 128000
@pytest.mark.parametrize(
"cost_map",
[_load_root_cost_map(), GetModelCostMap.load_local_model_cost_map()],
ids=["root", "bundled_backup"],
)
def test_opus_5_all_variants_carry_adaptive_thinking_flag(cost_map):
"""Every Opus 5 entry must advertise ``supports_adaptive_thinking``.
Adaptive-thinking detection is cost-map driven, so a single variant missing
the flag silently sends the legacy ``thinking.type='enabled'`` shape, which
Opus 5 rejects with a 400."""
variants = [k for k in cost_map if "claude-opus-5" in k]
assert variants, "no claude-opus-5 entries found in cost map"
missing = [
k for k in variants if cost_map[k].get("supports_adaptive_thinking") is not True
]
assert not missing, f"missing supports_adaptive_thinking: {missing}"
@pytest.mark.parametrize(
"cost_map",
[_load_root_cost_map(), GetModelCostMap.load_local_model_cost_map()],
ids=["root", "bundled_backup"],
)
def test_opus_5_all_variants_carry_512_token_cache_minimum(cost_map):
variants = [k for k in cost_map if "claude-opus-5" in k]
assert variants, "no claude-opus-5 entries found in cost map"
wrong = {
k: cost_map[k].get("prompt_cache_min_tokens")
for k in variants
if cost_map[k].get("prompt_cache_min_tokens") != 512
}
assert not wrong, f"prompt_cache_min_tokens must be 512: {wrong}"