22 lines
1.1 KiB
Markdown
22 lines
1.1 KiB
Markdown
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---
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name: OpenAI gpt-5 series rejects non-default temperature
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description: gpt-5* models error on temperature != 1; omit temperature in OpenAI-compatible clients for cross-model compatibility
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---
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# OpenAI-compatible client: do not send a non-default `temperature`
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When calling OpenAI-compatible `chat/completions`, the gpt-5 series (e.g. gpt-5-mini,
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the Replit AI Integrations modelfarm default) returns `HTTP 400 unsupported_value`:
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"`temperature` does not support 0.1 with this model. Only the default (1) value is
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supported." This silently disables AI analysis (`aiUsed:false`, `aiError` set).
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**Rule:** omit `temperature` from the request body for broad model compatibility,
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rather than hardcoding a low value for determinism.
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**Why:** older models accepted `temperature: 0.1` but gpt-5* only accept the default.
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A hardcoded low temperature breaks every scan against modern models.
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**How to apply:** in `artifacts/api-server/src/lib/aiAnalysis.ts` the OpenAI-compatible
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path no longer sends `temperature`. If reintroducing sampling controls, gate them per
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model or make them optional.
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