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fix(anthropic): drop output_config for Azure

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Prevent the Anthropic pass-through adapter from forwarding output_config
after it has already been translated to reasoning_effort for Azure calls.

Add a regression test for azure/gpt-5.2-chat adaptive thinking so the
translated reasoning parameter is preserved without leaking the
unsupported output_config field.

Made-with: Cursor
This commit is contained in:
kime541200 2026-04-24 12:41:29 +08:00
parent 8e652d129d
commit 435b103b69
2 changed files with 25 additions and 1 deletions
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2
litellm/llms/anthropic/experimental_pass_through/adapters/handler.py
View file

@ -225,7 +225,7 @@ class LiteLLMMessagesToCompletionTransformationHandler:
"include_usage": True,
}
excluded_keys = {"anthropic_messages"}
excluded_keys = {"anthropic_messages", "output_config"}
extra_kwargs = extra_kwargs or {}
for key, value in extra_kwargs.items():
if (

24
tests/test_litellm/llms/anthropic/experimental_pass_through/test_reasoning_effort_fields.py
View file

@ -261,6 +261,30 @@ class TestAdapterAdaptiveThinking:
else:
assert re == "high"
def test_messages_handler_does_not_forward_output_config_to_azure(self):
"""Adaptive thinking should translate output_config for Azure without leaking it."""
from litellm.llms.anthropic.experimental_pass_through.adapters.handler import (
LiteLLMMessagesToCompletionTransformationHandler,
)
completion_kwargs, _ = (
LiteLLMMessagesToCompletionTransformationHandler._prepare_completion_kwargs(
max_tokens=1024,
messages=[{"role": "user", "content": "hello"}],
model="azure/gpt-5.2-chat",
thinking={"type": "adaptive"},
extra_kwargs={
"api_version": "2025-01-01-preview",
"drop_params": True,
"output_config": {"effort": "high"},
},
)
)
assert completion_kwargs["reasoning_effort"] == "high"
assert completion_kwargs["api_version"] == "2025-01-01-preview"
assert "output_config" not in completion_kwargs
def test_responses_adapter_adaptive_with_output_config(self):
"""Responses adapter: adaptive thinking + output_config.effort."""
from litellm.llms.anthropic.experimental_pass_through.responses_adapters.transformation import (