AI EngineerGuide

Gemini 2.5 Flash Preview TTS retirement date: November 17, 2026

gemini-2.5-flash-preview-tts can be shut down as early as November 17, 2026.

13 days left until Nov 17, 2026 (earliest possible date)deprecated
Provider
Google (Gemini API)
Model IDs affected
gemini-2.5-flash-preview-tts
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)
Subscribe to all shutdowns (.ics)

Migrating from Gemini 2.5 Flash Preview TTS

Not yet reviewed. We haven't written model-specific migration notes for Gemini 2.5 Flash Preview TTS 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-2.5-flash-preview-tts.
  • 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

All model retirements · All Google (Gemini API) deprecations

FAQ

When will Gemini 2.5 Flash Preview TTS be retired?

Gemini 2.5 Flash Preview TTS (gemini-2.5-flash-preview-tts) 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-2.5-flash-preview-tts?

The recommended replacement is gemini-3.8-flash-tts or gemini-3.8-flash-lite-tts.

What happens to gemini-2.5-flash-preview-tts 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.