Gemini 3.1 Flash TTS Preview retirement date: November 17, 2026
gemini-3.1-flash-tts-preview can be shut down as early as November 17, 2026.
- Provider
- Google (Gemini API)
- Model IDs affected
gemini-3.1-flash-tts-preview- Shutdown date
- November 17, 2026 earliest possible
- Replacement
- gemini-3.8-flash-tts or gemini-3.8-flash-lite-tts
- Platforms
- Dates apply to the Gemini API and are the earliest possible shutdown dates Google publishes. If you use Gemini through another platform, check that platform's own schedule.
- Source
- Official Google (Gemini API) deprecations page (data last changed 2026-11-02, re-checked daily)
Migrating from Gemini 3.1 Flash TTS Preview
Not yet reviewed. We haven't written model-specific migration notes for Gemini 3.1 Flash TTS Preview yet. Start with the provider's official guidance and the replacement's model page, and use this general checklist:
- Search your code, config and environment variables for
gemini-3.1-flash-tts-preview. - Re-run your evaluation set against gemini-3.8-flash-tts or gemini-3.8-flash-lite-tts before switching traffic.
- Recount tokens with the new model's tokenizer and re-check
max_tokens, context fit and cost. - Check tool calling, structured output and stop sequences on your real prompts.
- Dates apply to the Gemini API and are the earliest possible shutdown dates Google publishes. If you use Gemini through another platform, check that platform's own schedule.
Check your code before Nov 17
Also shutting down on November 17, 2026
- Gemini 2.5 Flash Native Audio Preview 12 2025
gemini-2.5-flash-native-audio-preview-12-2025 - Gemini 2.5 Flash Preview TTS
gemini-2.5-flash-preview-tts - Gemini 2.5 Pro Preview TTS
gemini-2.5-pro-preview-tts - Gemini 3.1 Flash Live Preview
gemini-3.1-flash-live-preview
All model retirements · All Google (Gemini API) deprecations
FAQ
When will Gemini 3.1 Flash TTS Preview be retired?
Gemini 3.1 Flash TTS Preview (gemini-3.1-flash-tts-preview) shuts down on the Gemini API on November 17, 2026, according to the official Gemini API deprecations page. Google lists this as the earliest possible shutdown date; the exact date is announced later.
What should I use instead of gemini-3.1-flash-tts-preview?
The recommended replacement is gemini-3.8-flash-tts or gemini-3.8-flash-lite-tts.
What happens to gemini-3.1-flash-tts-preview requests after the shutdown date?
After a model is retired, API requests to it return an error. Move traffic to the replacement and test it on your own prompts before the date.
Does this date apply to Amazon Bedrock, Vertex AI or Azure?
Dates apply to the Gemini API and are the earliest possible shutdown dates Google publishes. If you use Gemini through another platform, check that platform’s own schedule.