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← AI PulseJul 28, 2026

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Vercel AI SDK Promotes repairText to Stable, Adds Experimental Speech Translation

The Vercel AI SDK has promoted the repairText option to stable for generateObject and streamObject functions, while also introducing an experimental speech translation model specification and streaming speech-to-speech translation.

By Illumora Editorial

Source · Jul 28, 2026, 3:01 AM · On Illumora · Jul 28, 2026, 3:13 AM

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Read the source →Vercel AI SDK Changelog — Release @ai-sdk/workflow@1.0.39 · vercel/ai
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The Vercel AI SDK has promoted the repairText option to stable for its generateObject and streamObject functions, according to a recent release. This update includes a deprecated experimental_repairText alias to maintain backwards compatibility. Concurrently, the SDK has introduced an experimental speech translation model specification, Experimental_SpeechTranslationModelV4, and an experimental_streamTranslate function for streaming speech-to-speech translation.

Key Points

  • The repairText option is now stable for generateObject and streamObject in the Vercel AI SDK.
  • A deprecated experimental_repairText alias is provided for backwards compatibility.
  • An Experimental_SpeechTranslationModelV4 specification has been added for experimental speech translation models.
  • The experimental_streamTranslate function supports streaming speech-to-speech translation.
  • The SDK avoids synthesizing client tool errors for invalid provider-executed tool calls.
  • The ai package was updated to version 7.0.39.

Context

According to the Vercel AI SDK changelog, these updates are part of ongoing patch releases. The promotion of repairText to stable indicates a maturation of this feature within the SDK. The introduction of experimental speech translation capabilities suggests an expansion into new modalities for AI interactions.

Why It Matters

These updates offer developers more robust text repair functionalities and open new avenues for integrating speech translation into applications. The move to stable for repairText provides a more reliable tool for handling text generation, while the experimental speech translation features allow early exploration of advanced multimodal AI applications.

What To Do

  • Developers should update their Vercel AI SDK to utilize the stable repairText option.
  • Review the documentation for generateObject and streamObject to understand the stable repairText implementation.
  • Experiment with Experimental_SpeechTranslationModelV4 and experimental_streamTranslate for speech-to-speech translation use cases.
  • Note the ai package version 7.0.39 for dependency management.

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