GA model 'models/imagen-3.0-generate-002' is missing and returns 404 NOT_FOUND

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Description of the bug:

The AI model models/imagen-3.0-generate-002 is suddenly returning a 404 NOT_FOUND error, even though it is listed in the official documentation as a GA (General Availability) model.

This model also no longer appears in the list returned by the genai.list_models() API call, and it is missing from the Google AI Studio web UI. This breaks all existing pipelines that rely on this model.

The specific error message is:

{'error': {'code': 404, 'message': 'models/imagen-3.0-generate-002 is not found for API version v1beta, or is not supported for predict.'}}

Actual vs expected behavior:

Actual: Making an API call to models/imagen-3.0-generate-002 results in a 404 NOT_FOUND error. The model is not present in the genai.list_models() output.

Expected: The API call should successfully generate an image, as this is documented as a GA (General Availability) model. The model should be listed in the API's model list.

Any other information you'd like to share?

This is a critical issue because developers rely on GA models to be stable for production use. The model was working recently. The official documentation still lists imagen-3.0-generate-002 as GA, which is now incorrect and misleading.

Can you please confirm if this model has been deprecated or removed? If so, where are official deprecation announcements made so developers can adapt their code in advance?