gemini-2.5-flash model retirement
RedirectsSubscribe to Gemini APIShare
On December 1, 2026, Gemini API will retire model gemini-2.5-flash. After that date, calls to model gemini-2.5-flash will not fail, but will be redirected automatically to answer from a newer model.
What to use instead of gemini-2.5-flash
Move calls to gemini-3.5-flash-lite before December 1, 2026.
In Gemini API's words
Model: gemini-2.5-flash; Release date: June 17, 2025; Shutdown date: December 1, 2026; Recommended replacement: gemini-3.5-flash-lite (gemini-2.5-flash is no longer available in Google AI Studio; effective December 1, 2026, API requests to gemini-2.5-flash will automatically route to gemini-3.5-flash-lite)
Facts
- API
- Gemini API
generativelanguage.googleapis.com - Model
gemini-2.5-flash- Released
- June 17, 2025 (models.dev)
- Kind
- Model retirement
- Takes effect
- December 1, 2026
- Calls after that day
- Answered by a newer version
- Source
- Deprecations page
- Last updated
- Verified
- , against Gemini API's own pages
Questions
When does this change take effect?
From December 1, 2026, Gemini API answers calls to the model gemini-2.5-flash from a newer version.
What happens to calls after December 1, 2026?
Gemini API answers them from a newer version. The response can differ from what your code expects.
When was gemini-2.5-flash released?
gemini-2.5-flash was released on June 17, 2025, according to models.dev.
How do I find the calls this hits in my code?
Okapi reads your repository, finds the calls this change hits and opens a pull request with the fix. It never commits to your branches: every change comes as a pull request you review.
gemini-2.5-flash on other APIs 3
-
Vertex AI
gemini-2.5-flashModel retirement Stopped working -
Lovable AI Gateway
google/gemini-2.5-flashModel retirement Redirected -
OpenRouter
google/gemini-2.5-flashModel retirement Stopped working
More from Gemini API 10
-
gemini-omni-flash-previewModel retirement Stopped working -
veo-3.1-fast-generate-previewModel retirement Stopped working -
veo-3.1-generate-previewModel retirement Stopped working -
gemini-2.5-flash-native-audio-preview-12-2025Model retirement Stops workingin 11 days -
gemini-2.5-flash-preview-ttsModel retirement Stops workingin 11 days -
gemini-2.5-pro-preview-ttsModel retirement Stops workingin 11 days -
gemini-3.1-flash-live-previewModel retirement Stops workingin 11 days -
gemini-3.1-flash-tts-previewModel retirement Stops workingin 11 days -
gemini-2.5-proModel retirement Redirectsin 25 days -
gemini-omni-1.1-flashModel retirement Stops workingin 27 days
Is your code calling this?
Okapi finds the calls this change hits in your repo and opens the pull request with the fix before December 1, 2026.