I tried out Antigravity a few months ago (before the v4 models were announced) and ended up cancelling whilst still having $20 credit on my account, which, annoyingly, you need an active subscription to use. Are these new models worth resubscribing for to make use of my credits? I think I still get the $5/month deal for a few months

Honestly Antigravity becomes competetive with $100 subscription, I used $20 quite well in the past but that was dominated by benefit of having other services bundled into it.