Vercel's @ai-sdk/openai 3.0.141 adds request-level text format override

Vercel published @ai-sdk/openai 3.0.141 on 11 November. The release is a patch update to the package that connects the AI SDK to OpenAI models.

According to the changelog, the release adds support for positioned Responses API format updates. Changing a structured output schema can now keep earlier reasoning and prompt cache reuse.

The update also adds a stable request-level text format override. It exposes prompt cache comparison diagnostics for both generation and streaming results.

Developers who change structured output schemas between calls may be able to keep earlier reasoning and reuse the prompt cache instead of losing both. The request-level text format override gives agent code a per-call way to set the text format. The cache diagnostics let teams check whether caching is working in both generate and stream calls.