feat(cost-map): add meta/muse-ember-1.0 with long-context rates from the Meta pricing page (#50847)

Co-authored-by: devin-ai-integration[bot] <158243242+devin-ai-integration[bot]@users.noreply.github.com>
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Kerry Lu 2026-11-09 22:36:06 -08:00 • committed by GitHub
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@ -42601,6 +42601,52 @@
"supports_function_calling": true,
"supports_tool_choice": false
},
"meta/muse-ember-1.0": {
"cache_read_input_token_cost": 4e-09,
"cache_read_input_token_cost_above_200k_tokens": 1.2e-08,
"input_cost_per_token": 1e-07,
"input_cost_per_token_above_200k_tokens": 3e-07,
"litellm_provider": "meta",
"max_input_tokens": 1048576,
"max_output_tokens": 524288,
"mode": "chat",
"output_cost_per_token": 5e-07,
"output_cost_per_token_above_200k_tokens": 1.5e-06,
"search_context_cost_per_query": {
"search_context_size_high": 0.0025,
"search_context_size_low": 0.0025,
"search_context_size_medium": 0.0025
},
"source": "https://dev.meta.ai/docs/pricing-rate-limits",
"supported_endpoints": [
"/v1/chat/completions",
"/v1/responses",
"/v1/messages"
],
"supported_modalities": [
"text",
"image",
"video",
"audio"
],
"supported_output_modalities": [
"text"
],
"supports_function_calling": true,
"supports_max_reasoning_effort": true,
"supports_minimal_reasoning_effort": true,
"supports_none_reasoning_effort": false,
"supports_parallel_function_calling": true,
"supports_pdf_input": true,
"supports_prompt_caching": true,
"supports_reasoning": true,
"supports_response_schema": true,
"supports_system_messages": true,
"supports_tool_choice": true,
"supports_vision": true,
"supports_web_search": true,
"supports_xhigh_reasoning_effort": true
},
"meta/muse-spark-1.1": {
"cache_read_input_token_cost": 1.5e-07,
"input_cost_per_token": 1.25e-06,

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@ -42601,6 +42601,52 @@
"supports_function_calling": true,
"supports_tool_choice": false
},
"meta/muse-ember-1.0": {
"cache_read_input_token_cost": 4e-09,
"cache_read_input_token_cost_above_200k_tokens": 1.2e-08,
"input_cost_per_token": 1e-07,
"input_cost_per_token_above_200k_tokens": 3e-07,
"litellm_provider": "meta",
"max_input_tokens": 1048576,
"max_output_tokens": 524288,
"mode": "chat",
"output_cost_per_token": 5e-07,
"output_cost_per_token_above_200k_tokens": 1.5e-06,
"search_context_cost_per_query": {
"search_context_size_high": 0.0025,
"search_context_size_low": 0.0025,
"search_context_size_medium": 0.0025
},
"source": "https://dev.meta.ai/docs/pricing-rate-limits",
"supported_endpoints": [
"/v1/chat/completions",
"/v1/responses",
"/v1/messages"
],
"supported_modalities": [
"text",
"image",
"video",
"audio"
],
"supported_output_modalities": [
"text"
],
"supports_function_calling": true,
"supports_max_reasoning_effort": true,
"supports_minimal_reasoning_effort": true,
"supports_none_reasoning_effort": false,
"supports_parallel_function_calling": true,
"supports_pdf_input": true,
"supports_prompt_caching": true,
"supports_reasoning": true,
"supports_response_schema": true,
"supports_system_messages": true,
"supports_tool_choice": true,
"supports_vision": true,
"supports_web_search": true,
"supports_xhigh_reasoning_effort": true
},
"meta/muse-spark-1.1": {
"cache_read_input_token_cost": 1.5e-07,
"input_cost_per_token": 1.25e-06,

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@ -0,0 +1,73 @@
import json
from pathlib import Path
import pytest
import litellm
from litellm.litellm_core_utils.get_llm_provider_logic import get_llm_provider
from litellm.litellm_core_utils.reasoning_effort_capability import resolve_supported_reasoning_efforts
MUSE_EMBER = "meta/muse-ember-1.0"
LONG_CONTEXT_THRESHOLD = 200_000
def _load_cost_map(filename: str = "model_prices_and_context_window.json") -> dict:
with open(Path(__file__).parents[2] / filename) as f:
return json.load(f)
def test_muse_ember_routes_to_meta_model_api():
routed_model, provider, _, api_base = get_llm_provider(model=MUSE_EMBER, api_key="sk-test")
assert routed_model == "muse-ember-1.0"
assert provider == "meta"
assert api_base == "https://api.meta.ai/v1"
def test_muse_ember_backup_matches_main():
main_cost = _load_cost_map()
backup_cost = _load_cost_map("litellm/model_prices_and_context_window_backup.json")
assert main_cost[MUSE_EMBER] == backup_cost.get(MUSE_EMBER)
def test_muse_ember_reasoning_efforts_include_max_and_exclude_none():
entry = dict(_load_cost_map()[MUSE_EMBER])
entry["key"] = MUSE_EMBER
resolved = resolve_supported_reasoning_efforts(entry, deployment_is_mapped=True)
assert resolved is not None
assert "max" in resolved
assert "xhigh" in resolved
assert "none" not in resolved
def test_muse_ember_long_context_tier_costs_more_than_standard():
row = _load_cost_map()[MUSE_EMBER]
for field in ("input_cost_per_token", "output_cost_per_token", "cache_read_input_token_cost"):
assert row[f"{field}_above_200k_tokens"] > row[field], f"{field} long-context rate should exceed the base rate"
def test_muse_ember_bills_long_context_rates_above_200k_input_tokens():
row = _load_cost_map()[MUSE_EMBER]
completion_tokens = 1_000
standard_prompt = LONG_CONTEXT_THRESHOLD
standard_cost = sum(
litellm.cost_per_token(model=MUSE_EMBER, prompt_tokens=standard_prompt, completion_tokens=completion_tokens)
)
assert standard_cost == pytest.approx(
standard_prompt * row["input_cost_per_token"] + completion_tokens * row["output_cost_per_token"]
)
long_prompt = LONG_CONTEXT_THRESHOLD + 50_000
long_cost = sum(
litellm.cost_per_token(model=MUSE_EMBER, prompt_tokens=long_prompt, completion_tokens=completion_tokens)
)
assert long_cost == pytest.approx(
long_prompt * row["input_cost_per_token_above_200k_tokens"]
+ completion_tokens * row["output_cost_per_token_above_200k_tokens"]
)
assert long_cost > 3 * standard_cost