gemini-omni-1.1-flash model retirement
Stops workingSubscribe to Gemini APIShare
On December 3, 2026, the model gemini-omni-1.1-flash will shut down and calls using it will fail. Requests to generativelanguage.googleapis.com referencing this model will no longer function after that date. The change takes effect across all standard API traffic utilizing the model.
The error you get from December 3, 2026
What Gemini API answers a call to gemini-omni-1.1-flash once the model is gone, as recorded from real responses:
{"error":{"code":404,"message":"This model models/gemini-omni-1.1-flash is no longer available to new users. Please update your code to use a newer model for the latest features and improvements.","status":"NOT_FOUND"}}{"error":{"code":404,"message":"models/gemini-omni-1.1-flash is not found for API version v1beta, or is not supported for generateContent. Call ModelService.ListModels to see the list of available models and their supported methods.","status":"NOT_FOUND"}}What to use instead of gemini-omni-1.1-flash
Migrate to gemini-omni-1.2-flash as recommended by Google. Effective December 3, 2026, the endpoint automatically routes API requests to gemini-omni-1.2-flash.
In Gemini API's words
Model: gemini-omni-1.1-flash; Release date: August 27, 2026; Shutdown date: December 3, 2026; Recommended replacement: gemini-omni-1.2-flash (Effective December 3, 2026, the endpoint is automatically routing API requests to gemini-omni-1.2-flash)
Facts
- API
- Gemini API
generativelanguage.googleapis.com - Model
gemini-omni-1.1-flash- Released
- August 27, 2026 (models.dev)
- Kind
- Model retirement
- Takes effect
- December 3, 2026
- Calls after that day
- Fail
- Source
- Deprecations page
- Last updated
- Verified
- , against Gemini API's own pages
Questions
When does gemini-omni-1.1-flash shut down?
Calls to the model gemini-omni-1.1-flash stop working on December 3, 2026.
What happens to calls after December 3, 2026?
They fail from that day.
What error does gemini-omni-1.1-flash return once it is shut down?
Gemini API answers HTTP 404: "This model models/gemini-omni-1.1-flash is no longer available to new users. Please update your code to use a newer model for the latest features and improvements.". Send another model to fix it.
When was gemini-omni-1.1-flash released?
gemini-omni-1.1-flash was released on August 27, 2026, 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.
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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 3, 2026.