# veo-3.1-fast-generate-preview

Calls to the model veo-3.1-fast-generate-preview on Gemini API stopped working on October 22, 2026.

Google retired model veo-3.1-fast-generate-preview on October 22, 2026. Calls specifying this model fail since that date. The shutdown affects requests sent to generativelanguage.googleapis.com that rely on this preview version.

## The error Gemini API returns once veo-3.1-fast-generate-preview is gone

Once it is closed to new API keys: HTTP 404

```json
{"error":{"code":404,"message":"This model models/veo-3.1-fast-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"}}
```

Once it is shut down: HTTP 404

```json
{"error":{"code":404,"message":"models/veo-3.1-fast-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

Move to gemini-omni-1.2-flash, which is the replacement recommended by Google.

- API: Gemini API (generativelanguage.googleapis.com)
- Model: veo-3.1-fast-generate-preview
- Kind: Model retirement
- Takes effect: October 22, 2026
- Calls after that day: fail
- Calls it hits: `model veo-3.1-fast-generate-preview`
- Source: [Deprecations page](https://ai.google.dev/gemini-api/docs/deprecations)
- Verified: November 6, 2026, against Gemini API's own pages
- Page: https://www.okapi.bot/models/gemini-api/veo-3.1-fast-generate-preview/

## Gemini API's words

> Model: veo-3.1-fast-generate-preview; Release date: October 15, 2025; Shutdown date: October 22, 2026; Recommended replacement: gemini-omni-1.2-flash

Okapi finds the calls this change hits in your repo and opens the pull request with the fix: https://github.com/apps/okapi-agent