Antigravity Plans and Quotas in 2026: What a Seat Actually Buys

Every plan gets the Gemini models, unlimited Tab completions, and the CLI. Accounts without a Google AI plan get a weekly quota. Pro gets a quota that refreshes every five hours until a weekly limit is reached, and Ultra the highest five-hour and weekly limits plus third-party models. Pro and Ultra users can buy AI credits for overage, charged at Gemini Enterprise consumption pricing, and choose whether overage starts automatically. Personal plans offer no bring-your-own-key option and no organizational tier.

For companies, Antigravity comes inside Gemini Enterprise Standard and Plus seats, which Google's pricing page lists from US$30 per seat per month, or on a Pay-as-you-go edition with no seat fee. Both need an invoiced Cloud Billing account.

Antigravity launched on November 18, 2025 at no charge, with rate limits refreshed every five hours. Engineers report weekly limits and multi-day lockouts on Pro from January 2026, and a March 2026 change that drained Ultra quota five to six times faster for the same parallel work. On May 19, 2026 Google merged its Gemini Pro and Flash limits into one quota drawn down at API prices and removed AI credits from the base plans. It also added the US$100 Ultra tier and cut the top tier from US$250 to US$200. On May 21, after users hit the new quota within minutes, Google's Antigravity team said it had tripled Gemini limits on every paid tier, as one engineer documented. On August 20, 2026 it added Antigravity to Gemini Enterprise Standard and Plus seats.

One former subscriber on Hacker News canceled after Google applied a limit change to their earlier usage. Record the quota rules and a review date in your rollout plan.

Google enforces seat credit weekly as one pool worth a quarter of the monthly per-user value times the project's licensed seats. Everyone in that edition and location shares it, with nothing carried over. Twenty Standard seats give a shared pool worth US$50 a week, and twenty Plus seats US$75, a GILD calculation from Google's stated values. One heavy user can drain the pool for the rest of the week.

Past the pool, work stops unless overage is enabled at pay-as-you-go rates. Claude Opus 5.5 and Sonnet 5.5 bill per token on the Cloud Billing account outside seat credit. Gemini models keep running in the background for context management and summaries while Claude works. Set Cloud Billing budget caps and track third-party token use from the admin metrics before widening access.

Of 123 public accounts GILD reviewed, 39 discuss quotas or plan changes, more than any other theme, and 29 raise them as a problem. Accounts after May 19, 2026 still report short weekly windows on Pro. One CLI user used a weekly quota in two prompts, and a team measured a 51-hour lock after five calls in October 2026. Others on Pro and Ultra in September and October 2026 call the limits generous for their work. Usage depends on task size and model, so measure your own.

GILD read Google's plan, pricing, and quota pages and the Gemini Enterprise documentation on October 12, 2026, and records prices in US dollars as Google lists them for the US. The weekly pool figures are GILD calculations from Google's stated per-user values. The history of quota changes before May 2026 comes from practitioner reports on the Google AI Developers forum and Hacker News, since Google's current Plans page describes only the present rules. Each report is linked and dated.

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Official documentation

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Public source

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1. 1Antigravity docs: PlansOfficial documentationantigravity.google
2. 2Google Antigravity pricingOfficial documentationantigravity.google
3. 3Antigravity blog: Changes to Antigravity plans (May 19, 2026)Official documentationantigravity.google
4. 4Antigravity docs: ModelsOfficial documentationantigravity.google
5. 5Gemini Enterprise docs: Quotas and pay-as-you-go usageOfficial documentationdocs.cloud.google.com
6. 6Gemini Enterprise docs: Compare editionsOfficial documentationdocs.cloud.google.com
7. 7Gemini Enterprise docs: AI developer tools overviewOfficial documentationdocs.cloud.google.com
8. 8Gemini Enterprise docs: Configure AI developer tools settingsOfficial documentationdocs.cloud.google.com
9. 9Antigravity blog: Bringing Antigravity to Gemini Enterprise (Aug 20, 2026)Official documentationantigravity.google
10. 10Antigravity blog: Introducing Google Antigravity (Nov 18, 2025)Official documentationantigravity.google
11. 11Google One: Google AI plansOfficial documentationone.google.com
12. 12Google AI Developers forum: Pro subscription, 10-day lockout instead of 5-hour reset (Jan 25, 2026)Public sourcediscuss.ai.google.dev
13. 13Google AI Developers forum: Ultra quota reduction after update (Mar 23, 2026)Public sourcediscuss.ai.google.dev
14. 14Joske Vermeulen: My AI agent hit Google's quota wall in 8 minutes (May 21, 2026)Public sourcedev.to
15. 15Jason Agostoni: Antigravity CLI first impressions (May 21, 2026)Public sourcedev.to
16. 16Google AI Developers forum: Antigravity CLI on Workspace and Google AI Pro accounts (Oct 12, 2026)Public sourcediscuss.ai.google.dev
17. 17Hacker News: a former subscriber on retroactive limit changes (Sep 1, 2026)Public sourcenews.ycombinator.com