Starting with Claude 4.6 models and Claude Mythos Preview ... on the last assistant turn are no longer supported. Requests with prefilled assistant messages to these models return a 400 error.
You need to migrate off `type: "enabled"` if: You use Claude Opus 4.6 or Sonnet 4.6, where `budget_tokens` is deprecated. ... where `type: "enabled"` returns a 400 error.
主张厂商把可复用的提示对象 API 标记弃用并给出关停时间线,提示词因此必须作为应用代码的一部分被版本化与回滚。
OpenAI is deprecating reusable prompt objects in the API. Prompt creation will be de-emphasized beginning June 3, 2026, and `v1/prompts` is scheduled to shut down on November 30, 2026.
06术语
术语换模型即失效与重编译 Model Swap Invalidates and Requires Recompilation