# imagen-3.0-generate-001

Calls to the model imagen-3.0-generate-001 on Vertex AI stopped working on June 30, 2026.

The model imagen-3.0-generate-001 was retired on June 30, 2026. Any calls targeting model imagen-3.0-generate-001 fail after that date.

## The error Vertex AI returns once imagen-3.0-generate-001 is gone

HTTP 404

```json
{"error":{"code":404,"message":"Publisher model `projects/{project}/locations/{region}/publishers/google/models/imagen-3.0-generate-001` was not found or your project does not have access to it. Ensure you are using a valid model name and that the model is available in the specified region.","status":"NOT_FOUND"}}
```

## What to use instead

Move to gemini-3.1-flash-lite-image. The earlier recommended upgrade, gemini-2.5-flash-image, stops working on March 15, 2027.

- API: Vertex AI (aiplatform.googleapis.com)
- Model: imagen-3.0-generate-001
- Kind: Model retirement
- Takes effect: June 30, 2026
- Calls after that day: fail
- Calls it hits: `model imagen-3.0-generate-001`
- Source: [Deprecations page](https://cloud.google.com/vertex-ai/generative-ai/docs/learn/model-versions)
- Verified: November 6, 2026, against Vertex AI's own pages
- Page: https://www.okapi.bot/models/vertex-ai/imagen-3.0-generate-001/

## Vertex AI's words

> Model ID: imagen-3.0-generate-001; Release date: December 10, 2024; Retirement date: June 30, 2026; Recommended upgrade: gemini-2.5-flash-image

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