I am AI pro user. I have been experiencing exactly the same reason.
I was waiting until the cycle reset for OPUS.
And when the cycle resets, it told me to wait another 7 days . Without even writing a single prompt, it auto expired.
This week it happens again. I could not even though Claude in a week.
Almost the same happened to me, as a few hours of coding with Claude Opus 4.6, it got easily locked out for almost a week, which would make it unable for me to be assisted by it.
This makes it significantly difficult to continue coding as few of new features and bug fixes would use up all the quota we are given, and would make me strongly think to shift to another AI-based IDE.
Hey All,
To provide you with greater control and a seamless path to scale, we are evolving our Google AI plans by introducing built-in AI credits that can now be utilized directly within Antigravity. Under this updated structure, our Google AI Pro tier is tailored for practical builders, offering generous limits for Gemini Flash alongside a baseline quota to experience our most advanced premium models. For developers operating at the highest scale who require consistent, high-volume access to our most complex models, Google AI Ultra serves as the ideal comprehensive solution.
Furthermore, we’ve designed these plans with maximum flexibility in mind; if you are on the Pro plan and require additional capacity or deeper premium access for intensive development sprints, you can seamlessly top up your AI credits to customize your limits and continue shipping your best work without interruption.
I’m afraid to say this, but even with the AI credits, it could reach my limits and be unable to continue shipping my best work, along with interruptions.
As an old daily user of Antigravity, I thought I’d be benefited from Pro plan I’ve got for months, compared to Free users without subscriptions, but even with my subscriptions, this limitations make me as if I hadn’t paid for it. I am kind of disappointed of this new feature.
AI credits have been introduced, but they are not yet available for charging in Japan. Could you please offer some meaningful suggestions for all users?
I was planning to subscribe to Google AI Pro for a year, but it’s no longer usable for me.
Nice change, you lost a customer! 
Just ran into the same issue, did one small sprint on Friday and saw that it would reset in 4 hours or so and then came back Saturday morning and now its showing 4 days, 21 hours
