openai_params_compatibilityTier 1 · 70% confidence

ai-agents-openai-params-compat-when-using-litellm-with-an-openai-model-that-suppo-30942545

agent: ai_agents

When does this happen?

IF When using LiteLLM with an OpenAI model that supports the 'reasoning_effort' parameter (e.g., gpt-5), setting it throws UnsupportedParamsError.

How others solved it

THEN Upgrade to a version of LiteLLM that includes the fix from PR #13475, or set `litellm.drop_params=True` in your configuration, or pass `'reasoning_effort'` in the `allowed_openai_params` list in the request.

# In proxy config.yaml:
litellm_settings:
  drop_params: true

# Or in Python:
# import litellm
# litellm.drop_params = True

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