xAI's new Custom Voices feature turns a minute of speech into a usable voice clone

THE DECODER / 5/2/2026

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Key Points

  • xAI has introduced a new “Custom Voices” feature that lets developers create voice clones tailored to their own voice for AI applications.
  • The feature can turn about one minute of speech into a usable cloned voice, enabling faster and more practical custom voice setup.
  • “Custom Voices” builds on xAI’s recently released Grok Speech-to-Text and Text-to-Speech APIs, extending the existing audio pipeline.
  • The update is positioned as developer-focused, adding new capabilities for integrating personalized voice experiences into products and services.
  • By lowering the data/time required for voice cloning, the feature could broaden the range of use cases for TTS and conversational AI.

xAI now lets developers clone their own voices for AI applications. The new "Custom Voices" feature builds on the recently launched Grok Speech-to-Text and Text-to-Speech APIs.

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