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Gemini 3.8 Flash-Lite TTS

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Google's lower-cost Gemini 3.8 speech model for dubbing, audio content and voice agents, covering 101 languages

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About Gemini 3.8 Flash-Lite TTS

Gemini 3.8 Flash-Lite TTS is the cheaper of Google's two Gemini 3.8 speech models, aimed at high-volume audio. Its main uses are dubbing, audio content and real-time voice agents, where a recogniser, a language model and a synthesiser are linked in one chain.

Its entry in the Gemini API changelog marks it generally available from 22 September, and the model itself was announced on 23 September 2026.

Main features

  • Dubbing and audio content: produces speech for dubbing and audio work at high volume.
  • Voice agents: speech output for real-time voice agents.
  • Voice replication: copies a voice under the same consent check and regional exclusions as the larger model, including the UK and the EEA.
  • Batch and caching: batch, caching and flex or priority inference options.

Key facts

  • Languages: 101, with automatic language detection.
  • Input limit: 8,192 tokens.
  • Output limit: 16,384 tokens.
  • Replaces: the Gemini 3.1 Flash TTS preview, and shares a request schema with Gemini 3.8 Flash TTS.

Profile written by TrustList from the business's own published information, Oct 2026.

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Trust Score

4/ 100
Trust Score: New

An earned signal from verification, reviews, awards, transparency and engagement - the vendor can't buy it.

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0/100 · 20%
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0/100 · 30%
Awards
0/100 · 15%
Transparency
18/100 · 20%
Engagement
0/100 · 15%
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Updated 9/24/2026

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