Gemini API
veo-3.1-lite-generate-preview model retirement
Stopped workingSubscribe to Gemini APIShare
On October 22, 2026, the model veo-3.1-lite-generate-preview was shut down. Calls targeting this model fail since that date. The change directly impacts any integrations still requesting model veo-3.1-lite-generate-preview through the API.
The error you get
What Gemini API answers a call to veo-3.1-lite-generate-preview once the model is gone, as recorded from real responses:
{"error":{"code":404,"message":"This model models/veo-3.1-lite-generate-preview 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/veo-3.1-lite-generate-preview 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 veo-3.1-lite-generate-preview
Move to the recommended replacement gemini-omni-1.2-flash.
In Gemini API's words
Model: veo-3.1-lite-generate-preview; Release date: March 31, 2026; Shutdown date: October 22, 2026; Recommended replacement: gemini-omni-1.2-flash
Facts
- API
- Gemini API
generativelanguage.googleapis.com - Model
veo-3.1-lite-generate-preview- Kind
- Model retirement
- Takes effect
- October 22, 2026
- Calls after that day
- Fail
- Source
- Deprecations page
- Last updated
- Verified
- , against Gemini API's own pages
Questions
When does veo-3.1-lite-generate-preview shut down?
Calls to the model veo-3.1-lite-generate-preview on Gemini API stopped working on October 22, 2026.
What happens to calls after October 22, 2026?
They have failed since October 22, 2026.
What error does veo-3.1-lite-generate-preview return once it is shut down?
Gemini API answers HTTP 404: "This model models/veo-3.1-lite-generate-preview 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.
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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You fixed this one by hand.
Okapi opens the pull request with the fix before the next breaking change reaches your code.