Google's new Flash TTS models let you design AI voices from scratch using text descriptions
Google released Gemini 3.8 Flash TTS and Flash-Lite TTS for designed, cloned, and multilingual synthetic voices.
Google is rolling out Gemini 3.8 Flash TTS and Gemini 3.8 Flash-Lite TTS through the Gemini API and Google AI Studio. Flash TTS creates voices from text descriptions, offers more than 2,000 presets, and can clone a voice from a 30-second sample after a spoken consent statement. Both support over 100 languages, line-level stage directions, and inaudible SynthID watermarks. Through the end of 2026, an hour of audio output costs about $0.81 on Flash TTS and $0.54 on Flash-Lite, rising to $1.62 and $1.08 in 2027.
- Flash TTS designs voices from role, accent, and trait prompts.
- Cloning needs a 30-second sample plus a matching spoken consent.
- Both models cover 100-plus languages and add SynthID watermarks.
- Through 2026, one audio hour costs about $0.81 or $0.54.
- Google claims leads on most Hume AI text-to-speech categories.
- Vendors
From the original article
4 min read at the-decoder.com
Google is introducing two new text-to-speech models, Gemini 3. 8 Flash TTS and Flash-Lite TTS, which support more than 100 languages. Flash TTS can create new voices from text descriptions, and both models let users add stage directions to individual lines and generate two-voice dialogue from a single script.
By Matthias Bastian · the-decoder.com
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