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

Google just shipped Gemini 3.1 Flash TTS with native support for 70+ languages and multi-speaker dialogue. Here's why expressive AI voices matter for your product stack.

Reporting by MarkTechPost 1 min brief
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The KeyNews take

Why it matters

Google is advancing multimodal AI capabilities with a TTS model that moves beyond basic speech synthesis to controllable, expressive generation across 70+ languages. This is a direct capability upgrade in the model_wars space and signals competitive pressure in audio AI from the search giant.

The key facts

6 to know

  1. Gemini 3.1 Flash TTS released as preview

  2. 70+ languages supported natively

  3. Natural-language audio tags for expressiveness control

  4. Multi-speaker dialogue capability

  5. Shift from black-box to controllable audio generation

  6. Published April 15, 2026 (recent release)

Go to the source

MarkTechPostmarktechpost.com

Publisher excerpt: 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…
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