Gemini 3 Pro Preview retirement date: March 9, 2026
Retired on March 9, 2026; requests to gemini-3-pro-preview now fail.
- Provider
- Google (Gemini API)
- Model IDs affected
gemini-3-pro-preview- Shutdown date
- March 9, 2026
- Replacement
- gemini-3.1-pro-preview
- 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 Pro Preview to Gemini 3.1 Pro Preview
Not yet reviewed. We haven't written model-specific migration notes for Gemini 3 Pro 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-pro-preview. - Re-run your evaluation set against gemini-3.1-pro-preview 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 Mar 9
All model retirements · All Google (Gemini API) deprecations
FAQ
When was Gemini 3 Pro Preview retired?
Gemini 3 Pro Preview (gemini-3-pro-preview) was retired on the Gemini API on March 9, 2026, according to the official Gemini API deprecations page. Requests to it now fail.
What should I use instead of gemini-3-pro-preview?
The recommended replacement is gemini-3.1-pro-preview.
What happens to gemini-3-pro-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.