[Bug] HTTP 401: gemini-2.5-flash-image-preview revoked in Canvas (Antigravity)?

Hi team,

Lucas from the official Gemini Discord directed me here regarding an Antigravity sandbox issue.

My React workflow inside the Canvas (Antigravity) environment has suddenly stopped working. Whenever I call the models/gemini-2.5-flash-image-preview:generateContent endpoint using the sandbox’s default injected credentials, it now consistently throws an HTTP 401 (Unauthorized) error.

Quick question: > Has this specific image model been intentionally restricted/revoked for the Canvas sandbox, or is this an unexpected token pool bug?

This is a hard blocker for our workflow. Any official confirmation would be greatly appreciated! Thanks!