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Google · First-party API · TTS

gemini-3.8-flash-tts

Release announcedReleased on Sep 22, 2026
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Notice

Release announced

Released on Sep 22, 2026

Google announced this model on 2026-09-22.

Hosting route
First-party API
Affected scope
Not stated in the notice
Announced
Sep 22, 2026
First seen by ModelClock
Oct 4, 2026

What the provider published

ai.google.dev ↗

September 22, 2026

  • Gemini 3.8 Flash TTS and Gemini 3.8 Flash-Lite TTS generally available (GA) : Released our next-generation text-to-speech (TTS) audio models and the Gemini API Voices endpoint (/v1beta/voices):

  • Gemini 3.8 Flash TTS (gemini-3.8-flash-tts) : Flagship creative TTS model engineered for studio-grade voice fidelity, nuanced acting, regional dialects, and long-form multi-turn stability.

  • Gemini 3.8 Flash-Lite TTS (gemini-3.8-flash-lite-tts) : Fast, cost-efficient TTS model built to replace gemini-3.1-flash-tts-preview for high-throughput production and real-time voice agent cascades.

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