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Different model families have different defaults and constraints for Chat Completions API parameters. For the full model list, see the Model List.

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Parameter Comparison

When temperature is close to 0, n can only be 1. Otherwise, the API returns invalid_request_error.

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Kimi K2.5 — thinking Parameter

Kimi K2.5 supports the thinking parameter to control whether deep thinking is enabled. Accepts {"type": "enabled"} or {"type": "disabled"}. Since the OpenAI SDK doesn’t have a native thinking parameter, use extra_body: 
completion = client.chat.completions.create(
    model="kimi-k2.5",
    messages=[
        {"role": "user", "content": "Hello"}
    ],
    extra_body={
        "thinking": {"type": "disabled"}
    },
    max_tokens=1024*32,
)