Antigravity Limits: Free, Pro & Ultra Plans Explained

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Google doesn’t publish Antigravity limits in messages or tokens. What we do know is how they’re structured: in Free and AI Plus, your limit renews once a week; in Pro and Ultra, it renews every 5 hours, but only until you exhaust your weekly cap. Gemini has one shared pool, and Claude has a separate one. Below, we explain how this works in practice, where to check your quota, and what to do when you run out. For everything else about the tool itself, see our guide to Google Antigravity.

Limits in Each Plan

Antigravity doesn’t have its own subscription; your limit depends on the Google AI plan on the account you use to log in. Prices in USD are from Google’s US pricing, described in our article Gemini: pricing and plans.

The 5x and 20x multipliers were announced by Google on May 19, 2026, when plans changed, calculated in tokens relative to the $20 Pro tier. The /boost command, which runs multiple sub-agents simultaneously on difficult tasks, works only in paid plans according to documentation. Code completion with the Tab key is unlimited in all plans.

Documentation inconsistency: the plans page still states that third-party models are only available in Ultra. An in-app message from October mentions paid Pro and Ultra. We described what this looks like in practice in our article Claude Opus 5.5 and Sonnet 5.5 in Antigravity.

Two Counters: 5 Hours and Weekly

In Pro and Ultra, two counters run simultaneously, and both must have capacity for the agent to work:

• 5-hour window - a short pool for current work; after you exhaust it, it returns in a few hours;
• weekly limit - a hard ceiling for the entire 7-day cycle; when you exhaust it, waiting 5 hours won’t help, the block lasts until the start of the next week.

A Google response on the developer forum confirms this mechanism: after exhausting the weekly pool, wait time jumps from a few hours to several days. This is where screenshots with a “come back in 6 days” counter come from. In March 2026, Ultra had 5-hour renewal without a weekly limit, but current documentation now mentions “the highest weekly limit” in Ultra as well. Unused quota does not roll over to the next period.

In Free and AI Plus, there’s only a weekly counter. If you exhaust it on Monday, you’re left with code completion until the next cycle.

Shared Gemini Pool: Pro Burns It About 3x Faster Than Flash

Since May, Gemini 3.1 Pro and Flash models share one pool, from which Google subtracts usage “according to API prices.” Google doesn’t say how much is in the pool, but you can calculate the ratio from the API pricing. We checked prices on October 3, 2026, on the Gemini API page:

The example task is a typical agent session: a few files in context, reading terminal output, a short change. The dollar amounts are notional; only the ratio matters: on the same pool, you’ll do roughly three times more work on Flash than on Pro. Two caveats:

• High reasoning level extends the response, and thinking tokens count as output, so Pro on High burns through the pool even faster;
• in the API, Flash model prices rise on January 1, 2027, to $1.50 and $7.50; whether Antigravity will recalculate the pool then, Google hasn’t said.

Claude models count against a separate, fixed pool. Exhausting it doesn’t block Gemini and vice versa. Opus 5.5 uses this pool faster than Sonnet 5.5, but Google doesn’t publish a multiplier.

Where to Check How Much Is Left

• Antigravity 2.0 - Settings, Models tab. Since version 2.1.4, the screen shows used and remaining limits separately. You can also see the weekly counter here.
• Antigravity CLI - the /usage command (alias /quota) shows limits for each model, and /credits opens the AI credits panel. Credit status can also be displayed in the status bar.
• Antigravity IDE - according to forum reports from June 2026, the IDE itself doesn’t show the weekly limit; you need to check the 2.0 app.

The counter can be imprecise. In GitHub issue #334 (June 8), /quota showed 100%, while at the same time the CLI reported an exhausted limit.

What to Do When You Hit the Limit

1. Check which counter ran out. If it’s the 5-hour one, you wait a few hours. If it’s the weekly one, you wait for a new cycle or pay.
2. Switch pools. After exhausting Claude, switch to Gemini and vice versa. When working on Gemini, choose Flash instead of Pro.
3. Check your account. If the limit ran out suspiciously fast, make sure Antigravity is logged in with an account that has a plan. An account without a plan only gets the weekly pool. Logging out and back in can help.
4. Decide about AI Credits. In Pro and Ultra, the AI Credit Overages setting has two options: Never (you wait for renewal) and Always (after exhausting the limit, credits are automatically deducted). If you don’t want surprises, leave it on Never.
5. Work with completion. Tab works without a limit, so you can make small changes manually.
6. Wait it out in another tool. For small tasks, Cursor on the Hobby plan or free GitHub Copilot will suffice.

User Reports

These are reports from forums and GitHub, not official Google data. They show how limits looked in practice in 2026:

• January 2026, Google forum - after update 1.15.6, Pro users reported blocks on third-party models for several days instead of 5 hours (thread);
• March 2026, Reddit - on r/google_antigravity, complaints poured in about zeroed limits in Pro and counters showing nearly a week of wait time; collected by PiunikaWeb;
• June 2, 2026, Google forum - question about where to see the weekly limit; Logan Kilpatrick pointed to Settings, Models, but another user determined that the weekly counter is only in the 2.0 app (thread);
• June 14, 2026, GitHub - limit exhausted after one /goal task and one slide generation, only on Flash model (issue #386);
• May-July 2026, GitHub - complaints about high token overhead in CLI; in a July 5 response, advice was given to limit context (discussion #27307);
• July 8, 2026, Google forum - on Ultra at $199.99, about 20% of the weekly Claude pool was gone in an hour; responses in the thread: this is how current limits work (thread);
• September 5, 2026, GitHub - after two days without use, /usage showed 33% of weekly limit (issue #952).

How to Conserve Your Limit

• Flash for small tasks. According to the calculator above, that’s roughly three times more work from the same pool.
• Lower reasoning level. Low or Medium for fixes, High only for difficult bugs.
• /plan first. Correcting a plan costs less than rolling back poorly written code.
• Small project scope. Add only the folder you’re working on to the project. Fewer files means less reading.
• New conversation instead of a very long one. Each turn carries history, so a long conversation gets more expensive with each command.
• Short rules. Global rules and always_on go into every command and share a 20,000-token budget. Set less frequently needed rules to model_decision; then the agent only gets their description.
• Be careful with /goal and /boost. An unsupervised agent can loop on minor fixes, and /boost launches multiple sub-agents at once. Documentation doesn’t say how much this costs, but more agents means more tokens.

Frequently Asked Questions

How many messages do I get in Antigravity for free?

Google doesn’t publish this. We only know that the Free plan limit renews once a week, and usage depends on the model and task complexity.

Are Claude and Gemini limits shared?

No. Gemini 3.1 Pro and Flash share one pool, and Claude has a separate one. After exhausting one, you can work on the other.

Why do I have to wait several days when the limit renews every 5 hours?

Because you exhausted your weekly limit. The 5-hour window only works as long as there’s something left in the weekly pool.

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Sources

• Antigravity: plans and limits
• Antigravity: plan changes from May 19, 2026
• Antigravity: changelog
• Antigravity CLI: /usage command
• Antigravity: /boost
• Antigravity: rules and token budget
• Gemini API: pricing

Checked October 3, 2026. User reports are linked above with each account.

Kinetyra