# imagen-4.0-generate-preview-06-06

Calls to the model imagen-4.0-generate-preview-06-06 on Gemini API stopped working on February 17, 2026.

## The error Gemini API returns once imagen-4.0-generate-preview-06-06 is gone

Once it is closed to new API keys: HTTP 404

```json
{"error":{"code":404,"message":"This model models/imagen-4.0-generate-preview-06-06 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/imagen-4.0-generate-preview-06-06 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-nano-banana-2.1, recommended by Google.

- API: Gemini API (generativelanguage.googleapis.com)
- Model: imagen-4.0-generate-preview-06-06
- Kind: Model retirement
- Takes effect: February 17, 2026
- Calls after that day: fail
- Calls it hits: `model imagen-4.0-generate-preview-06-06`
- 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/imagen-4.0-generate-preview-06-06/

## Gemini API's words

> Model: imagen-4.0-generate-preview-06-06; Release date: June 24, 2025; Shutdown date: February 17, 2026; Recommended replacement: gemini-nano-banana-2.1

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