Model · Audio generation model
Gemini 3.1 Flash TTS Preview
A legacy Gemini 3.1 Flash text-to-speech preview that turns text into steerable single- or multi-speaker audio through the Gemini API and Cloud Text-to-Speech under Google's terms, with no downloadable model weights and an earliest shutdown of November 17, 2026.
- Developer
- Distribution
- Developer API
- Artifact licensing
- Proprietary access
- License scope
- Reviewed release artifacts and mandatory terms; not an assessment of training code or training data openness.
- Licenses
- Gemini API Additional Terms of Service
- Boundary
- This record represents the Gemini 3.1 Flash TTS preview identified by the model code gemini-3.1-flash-tts-preview, launched April 15, 2026 per the changelog, marked legacy, and listed with an earliest shutdown date of November 17, 2026 and the Gemini 3.8 TTS models as replacements. The Gemini 3.8 Flash and Flash-Lite TTS releases, the Gemini 2.5 TTS lines, and the Gemini app products remain separate model or service boundaries.
Risk statements
Not yet examined.
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