2026.01.15

Claude Opus 4.5 Works on Antigravity’s Free Tier — The Docs Were Right

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#AI Tools #Antigravity #Claude #Free #Opus 4.5

Claude Opus 4.5 Works on Antigravity's Free Tier — The Docs Were Right

Key Takeaway: Confirmed that Claude Opus 4.5 is usable on Antigravity's free account (no subscription) as of January 15, 2026.

The official Antigravity documentation mentioned that Claude Opus 4.5 was available. Honestly, I was skeptical.

"Can the latest Opus really work on a free account?" "There must be some catch, right?"

I tried it anyway, and it just worked.

Claude Opus 4.5 is Anthropic's flagship model. Using it via API typically costs a fair amount.

Being able to use it on Antigravity's free tier, even to some extent, is pretty amazing value.

Of course, heavy usage probably won't fly. There are surely limits on the free tier, and rate limiting is likely in place.

But for:

It seems perfectly usable.

If you've been wanting to try Opus but hesitant about paying, give Antigravity a shot.

Note: Free access to the latest Opus model is rare. It's practical enough for light tasks.

Keep in mind that terms and limits could change in the future, so try it while you can.

Verified on: January 15, 2026

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