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

MarkTechPost / 4/16/2026

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Key Points

  • Google has previewed Gemini 3.1 Flash TTS, a text-to-speech model aimed at delivering higher speech quality and more expressive, controllable audio.
  • The model shifts emphasis from basic audio conversion to using natural-language audio tags for improved control over generation.
  • Gemini 3.1 Flash TTS supports multilingual output in more than 70 languages, targeting broader global usability.
  • It also includes native multi-speaker dialogue generation, enabling more dynamic conversations in synthesized speech.

Google has introduced Gemini 3.1 Flash TTS, a preview text-to-speech model focused on improving speech quality, expressive control, and multilingual generation. Unlike previous iterations that prioritized simple conversion, this release emphasizes natural-language audio tags, native support for more than 70 languages, and native multi-speaker dialogue. This release signals a shift from ‘black-box’ audio generation toward […]

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