I'm guessing at least 50% of the "users" of Antigravity are actually OpenCode users exploiting the oauth and endpoint. Must be infuriating to them if they're subsidizing it.

The OpenCode plugin (8.7k stars btw!) even advertises "Multi-account support — add multiple Google accounts, auto-rotates when rate-limited"[1]

[1] https://github.com/NoeFabris/opencode-antigravity-auth/blob/...