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Add support for gpt-oss-* models as reasoning models, and allow for reasoning_effort params in standard models #231

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Merged
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Aug 24, 2025
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Add support for gpt-oss-* models as reasoning models, and allow for reasoning_effort params in standard models #231

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6 changes: 6 additions & 0 deletions openevolve/llm/openai.py
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Original file line number Diff line number Diff line change
Expand Up @@ -75,6 +75,8 @@ async def generate_with_context(
"o4-", # o4-mini
# GPT-5 series are also reasoning models
"gpt-5-", "gpt-5" # gpt-5, gpt-5-mini, gpt-5-nano
# The GPT OSS series are also reasoning models
"gpt-oss-120b", "gpt-oss-20b"
)

# Check if this is an OpenAI reasoning model
Expand Down Expand Up @@ -106,6 +108,10 @@ async def generate_with_context(
"max_tokens": kwargs.get("max_tokens", self.max_tokens),
}

# Handle reasoning_effort for open source reasoning models.
if "reasoning_effort" in kwargs:
params["reasoning_effort"] = kwargs["reasoning_effort"]

# Add seed parameter for reproducibility if configured
# Skip seed parameter for Google AI Studio endpoint as it doesn't support it
seed = kwargs.get("seed", self.random_seed)
Expand Down