Claude 4.x (Opus / Sonnet / Haiku 4.x) returns 400 'top_k is deprecated for this model' on any request that includes top_k. It was always optional on the older 3.x line, so dropping it unconditionally for every Anthropic call is the simplest path — no per-model gate to maintain. - external_provider._stream_anthropic no longer adds top_k to the Messages body (kept on the method signature for API symmetry). - provider-capabilities sets anthropic.topK = false so the chat settings panel hides the Top K slider for Anthropic providers and chat-adapter does not send top_k in the external request. |
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| data-designer.openapi (1).yaml | ||
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