model-deprecations changedabout-claude/model-deprecations
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214214## API parameter deprecations
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216Anthropic occasionally deprecates request parameters that no longer apply to current models. Deprecated parameters remain in the SDK request types so existing code continues to type-check, but their behavior changes per model.
216Anthropic occasionally deprecates request parameters that no longer apply to current models. How the API treats a deprecated parameter depends on the model, as the following table shows. Most SDKs keep deprecated parameters in their request types so existing code continues to type-check. The Python SDK (v1.0 and later) removes `temperature`, `top_p`, and `top_k`, so passing them raises a `TypeError`.
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218218| Parameter | Status | Behavior | Recommended replacement |
219219| ------------------------------- | -------------------------------------- | ------------------------------------------------------------------------------------------------------------------------------------------------ | ----------------------------------------------------------------------------------------------------------------------------------------------------------- |
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