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Vercel AI SDK Updates Include GPT-6-Astra Support and Tool Annotation

The Vercel AI SDK has received updates, including support for the gpt-6-astra model and the surfacing of server-provided tool annotations in tool metadata.

By Illumora Editorial

Source · Sep 4, 2026, 9:39 PM · On Illumora · Sep 4, 2026, 9:43 PM

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Read the source →Vercel AI SDK Changelog — Release @ai-sdk/mcp@1.0.78 · vercel/ai
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Vercel's AI SDK has been updated, with @ai-sdk/openai@3.0.108 adding support for the gpt-6-astra model. The @ai-sdk/mcp@1.0.78 package now surfaces server-provided tool annotations within tool metadata. Additionally, @ai-sdk/open-responses@1.0.40 introduces strict assistant history serialization without synthetic item IDs.

Key Points

  • The @ai-sdk/openai@3.0.108 package now supports the gpt-6-astra model.
  • @ai-sdk/mcp@1.0.78 surfaces server-provided tool annotations in tool metadata.
  • @ai-sdk/open-responses@1.0.40 includes strict assistant history serialization.
  • This serialization specifically operates without synthetic item IDs.

Context

According to the Vercel AI SDK Changelog, these updates were released on September 4 at 21:39 UTC. The changes reflect ongoing development in the SDK's capabilities for integrating with AI models and managing tool interactions.

Why It Matters

These updates provide developers using the Vercel AI SDK with access to a new model and enhanced control over tool metadata and assistant history serialization. This can impact how applications interact with AI services and manage conversational state.

What To Do

  • Developers should review the @ai-sdk/openai documentation for details on integrating gpt-6-astra.
  • Examine the @ai-sdk/mcp updates to understand how server-provided tool annotations are now exposed.
  • Note the changes in @ai-sdk/open-responses regarding assistant history serialization.
  • Test existing applications with the updated SDK versions to ensure compatibility and leverage new features.

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