Gemini 2.5 preview TTS models shut down on 2026-11-17
- Provider
- Gemini
- Endpoint
POST /*/models/gemini-2.5-*-preview-tts:*- Effective
- 2026-11-17
- Severity
- critical
- Change
- version-sunset
- Status
- verified
What changed
Google shuts down gemini-2.5-flash-preview-tts and gemini-2.5-pro-preview-tts on 2026-11-17. After that the models are turned off and speech-generation calls that name them in the path fail. Calls that pass the model in a request body are not matched by this path.
What to do
Switch to gemini-3.8-flash-tts or gemini-3.8-flash-lite-tts before 2026-11-17; the current speech-generation docs send the model in the body of POST /v1beta/interactions. Re-check voice names and how you decode the returned audio.
Sources
Check your code
bash
npx shapi-cli scan .shapi scan lists the call sites this change affects; shapi fix repairs them test-first when the advisory has an automatic fix. All advisories · Markdown · OSV · JSON