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Google Antigravity limits, free tier and AI credits, explained

From Google's own Antigravity docs, pricing page, Google One plans page and Google One Help, checked Nov 3, 2026. Sources below.

Short answer: every Antigravity plan has a usage quota, and Google doesn't publish it as a number of prompts. On the $0 plan the quota refreshes once a week. Google AI Pro ($19.99 a month) refreshes every five hours until you hit a weekly limit, and Ultra gets the most. Google says the quota follows "the amount of work done by the agent," so small, clear tasks go further than big ones. When you run out, you wait for the refresh, upgrade, or, on Pro and Ultra only, pay for extra use with AI credits you buy from Google One. In the CLI, using credits is off by default.

Limits on each plan

PlanPrice (Google One)How the quota worksCan buy AI credits?
Free (Google calls it Individual)$0"A meaningful quota, refreshed weekly" plus a weekly rate limit. The pricing page calls it "basic weekly rate limits."No
Google AI Plus$4.99/monthGoogle's model table lists Plus in the same column as Free, and Google One's plan table rates Plus's Antigravity agent requests "Limited."No. Google One Help says AI credits "are not available for purchase for Google AI Plus plans."
Google AI Pro$19.99/month"A high, generous quota, refreshed every five hours until the weekly limit is reached," plus "a higher weekly rate limit"Yes
Google AI Ultra$99.99/month, or $199.99/month (the bigger Ultra plan)"The highest, most generous quota, refreshed every five hours" and "the highest weekly rate limits." Google One Help says that, depending on which Ultra plan you have, you get 5 or 20 times the Pro plan's usage quota in Gemini and Google Antigravity.Yes

Prices are per month in US dollars, before tax, from Google One's plans page. Antigravity's own pricing page names the plans but doesn't show prices. Every plan gets unlimited Tab completions and, in Google's words, "access to all product features, such as scheduled tasks and the CLI." Two commands, /boost and /teamwork (several agents working on one task), need a paid plan.

Teams and companies use a separate setup through Google Cloud and Gemini Enterprise, with its own billing. This page covers personal Google accounts, which Google says can use Antigravity on any plan, including the free one.

How the quota is counted

How to check what you have left

You may see third-party "quota monitor" add-ons. We haven't checked any of them. Google's FAQ says using third-party software to access Antigravity with your login breaks its terms and "can result in suspension or termination of your account," so be careful with anything that asks for your Antigravity sign-in.

AI credits: what they are and when they get used

AI credits are Google One's pay-as-you-go top-up. They kick in only after your plan's quota runs out. Here's what Google's pages say about them:

The setting that decides whether credits get spent

In the Antigravity App, the setting is called AI Credit Overages, and it has two choices:

In the CLI it's a separate switch called Use AI Credits (useG1Credits in settings.json). Google's settings doc says it's off by default. (Google's pages don't say what the App's setting starts at, so check it once in Settings.) You can change it with /config or /settings, or in the file. If you want to make sure the CLI never spends credits, this is all it takes:

~/.gemini/antigravity-cli/settings.json (credits stay off)
{
  "useG1Credits": false
}

If the file already has other settings, add the "useG1Credits": false line inside the existing braces instead of replacing the file.

Do Pro or Ultra come with AI credits included?

Google's pages don't say so. Antigravity's pricing page lists a "Flexible AI credit pool" on Pro and Ultra, but its plans doc and Google One Help only describe credits you buy ("or any one-time promotional credits"). Two other numbers on Google One's plans page are easy to mix up with them:

So don't count on free credits. Check your balance with /credits or the AI credits activity page before you turn overages on.

What to do when you hit the limit

  1. Wait for the refresh. On $0 that's weekly. On Pro and Ultra it's every five hours, unless you've also hit the weekly limit.
  2. Try another model. The quota is per model, so another one in the picker may still have some left (see models).
  3. Upgrade. Google's FAQ says Free and Google AI Plus users subscribe to Google AI Pro or Ultra on Google One. If you're on a Pro trial, some models need you to switch to paid Pro (Google says to submit a request through Google One support).
  4. Turn on AI credits (Pro and Ultra only), as above. Watch the balance the first few times.
  5. CLI only: use a Gemini API key. Google's install doc says the CLI can run with a GEMINI_API_KEY instead of a Google sign-in. Requests then "go directly to the Gemini API" and the CLI "never establishes an account session," so they follow that key's own Gemini API limits and pricing, not your Antigravity plan. Google's plans doc also says bring-your-own-key isn't supported as a way to get "additional rate limits" in Antigravity itself.

What not to do: Google's FAQ says "automating account rotation" is "not supported under consumer plans," and using Antigravity through third-party coding tools (it names Claude Code, OpenClaw and OpenCode) with your Antigravity login breaks its terms. So don't switch between accounts to get around the limit.

Is the free tier enough to start?

For learning and small projects, it's a real way to try Antigravity for $0: you get the App, the CLI and every feature except /boost and /teamwork. The catch is the weekly refresh. If you use most of your quota on Monday, you may be waiting until next week. Since Google doesn't publish the size, the only way to know your pace is to watch /usage or the Settings page in your first week.

Students: Google One's plans page offers students Google AI Pro "free for 1 year" (with student verification). Google's model table says the Claude 5.5 models on Pro are "for non-trial subscriptions only," and its pages don't say whether the student offer counts as a trial. Check the model picker after you sign up.

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Which models each plan can use

From Google's model table, checked Nov 3, 2026:

You can also pick a thinking level (Low, Medium or High). Google describes it as a trade-off between speed on quick edits and deeper reasoning on hard problems. It doesn't say how much quota each level or model uses, so if you switch, check /usage afterwards. For how Antigravity's models and prices compare with Claude Code and Codex, see Antigravity vs Claude Code vs Codex.

Antigravity CLI vs Gemini CLI limits

If you've read that Google's terminal agent gives you "1,000 free requests a day," that number is from Gemini CLI, and it no longer applies to most people:

Moving over takes a few steps. Google's migration guide says your GEMINI.md and AGENTS.md files keep working, agy plugin import gemini turns Gemini CLI extensions into plugins, and project skills have to move from .gemini/skills/ to .agents/skills/. More: GEMINI.md examples and Google Antigravity skills.

Tips to make your quota go further

These are our suggestions, not Google's numbers. They follow from Google saying that simple tasks the agent can finish quickly use less quota.

AGENTS.md (project root; Antigravity reads it)
# AGENTS.md

## How to work (keeps each task small)
- Before you change anything, tell me your plan in plain English and wait for my OK.
- Do one thing at a time. When it works, stop and tell me how to check it.
- Only open the files you need for this task. Ask me if you're not sure where something is.
- If a fix doesn't work after two tries, stop and explain what you think is wrong.
- Ask me before adding a new package or deleting any file.

More starters: AGENTS.md examples, and for Antigravity's own .agents/rules/ folder, Google Antigravity rules.

Where Google's own pages disagree

We checked them all on Nov 3, 2026. These don't line up, so we didn't pick a side above:

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Related

Sources

All plans, prices, limits and settings checked Nov 3, 2026 on Google's own pricing, docs and help pages. Prices are in US dollars, before tax, and change often. Google says its usage limits can change too. If something here no longer matches, tell us at [email protected].

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