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fix(openai): avoid PydanticSerializationUnexpectedValue for structured output (#35543)

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This commit is contained in:
Jason Meng
2026-03-04 18:46:46 -08:00
committed by GitHub
parent 3101794dde
commit f698b43b9a
2 changed files with 50 additions and 1 deletions
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8
libs/partners/openai/langchain_openai/chat_models/base.py
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@@ -1548,7 +1548,13 @@ class BaseChatOpenAI(BaseChatModel):
generations = []
response_dict = (
response if isinstance(response, dict) else response.model_dump()
response
if isinstance(response, dict)
# `parsed` may hold arbitrary Pydantic models from structured output.
# Exclude it from this dump and copy it from the typed response below.
else response.model_dump(
exclude={"choices": {"__all__": {"message": {"parsed"}}}}
)
)
# Sometimes the AI Model calling will get error, we should raise it (this is
# typically followed by a null value for `choices`, which we raise for