Google AI Launches Gemini 3.1 Flash TTS: A New Benchmark in Expressive and Controllable AI Voice

Google has introduced Gemini 3.1 Flash TTS, a text-to-speech model focused on improving speech quality, expressive control, and multilingual generation. This release emphasizes natural-language audio tags, native support for over 70 languages, and multi-speaker dialogue.

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Why it matters

Gemini 3.1 Flash TTS demonstrates Google's continued progress in developing high-quality, expressive, and multilingual text-to-speech capabilities, which have significant implications for various AI-powered applications.

Key Points

  • 1Gemini 3.1 Flash TTS is a new text-to-speech model from Google AI
  • 2It prioritizes natural-sounding speech, expressive control, and multilingual capabilities
  • 3The model supports over 70 languages natively and enables multi-speaker dialogue

Details

Gemini 3.1 Flash TTS represents a shift in Google's approach to text-to-speech technology. Unlike previous iterations that focused on simple audio conversion, this release emphasizes more natural-sounding and expressive speech generation. The model supports a wide range of languages natively and can handle multi-speaker dialogue, allowing for more natural and contextual audio output. This advancement signals Google's efforts to move beyond 'black-box' audio generation toward a more sophisticated and controllable AI voice technology.

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