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Vercel AI SDK Updates Include Fish Audio Provider and ToolLoopAgent Enhancements

The Vercel AI SDK has been updated to include a new Fish Audio provider for speech and transcription models, alongside enhancements to the ToolLoopAgent and instruction handling.

By Illumora Editorial

Source · Aug 6, 2026, 12:58 AM · On Illumora · Aug 6, 2026, 1:08 AM

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Read the source →Vercel AI SDK Changelog — Release @ai-sdk/vercel@3.0.24: Version Packages (#18484) · vercel/ai
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Vercel has released updates to its AI SDK, including version @ai-sdk/vercel@3.0.24, @ai-sdk/vue@4.0.54, @ai-sdk/voyage@2.0.22, and @ai-sdk/valibot@3.0.22. These updates introduce a new audio provider and refine how language model instructions and agent callbacks are managed.

Key Points

  • The @ai-sdk/fish-audio@3.0.0 package adds a new Fish Audio provider, supporting speech and transcription models.
  • ai@7.0.54 allows ToolLoopAgent prepareCall callbacks to read and override the top-level reasoning option.
  • A defaultInstructionsMiddleware has been added for applying default language model instructions while preserving call-level overrides.
  • Preceding assistant messages are now preserved when regenerating a response.
  • @ai-sdk/anthropic@4.0.32 rejects spliced Anthropic generations but permits duplicate message start events for the active message.

Context

According to the Vercel AI SDK changelog, these updates are part of ongoing development to enhance the SDK's capabilities and flexibility. The changes were released via a GitHub action, with packages published to npm automatically.

Why It Matters

These updates provide developers with more control over language model interactions and agent behavior within the Vercel AI SDK. The addition of a new audio provider expands the types of applications that can be built using the SDK, while improved instruction handling and message preservation can lead to more consistent and robust AI-powered experiences.

What To Do

  • Review the @ai-sdk/fish-audio@3.0.0 documentation to explore its speech and transcription model capabilities.
  • Examine the ToolLoopAgent prepareCall callbacks to understand how to read and override reasoning options.
  • Investigate the defaultInstructionsMiddleware for managing language model instructions.
  • Note the changes in @ai-sdk/anthropic@4.0.32 regarding spliced generations and message start events.