Antigravity quota: Pro vs Ultra, priced per unit
Google prices Antigravity quota only relatively. Its subscriptions page gives Ultra $99.99 "5x higher usage limits vs. AI Pro" and Ultra $199.99 "20x higher usage limits vs. AI Pro", plan-wide; the Antigravity-specific lines on the same page carry no number, only "Higher rate limits" for the 5x tier and "Highest rate limits" for the 20x one. Dividing price by multiple is plain first-party arithmetic, and it says something Google's marketing does not: the $99.99 tier carries zero quota discount. Verified against Google's pages on 2026-10-12.
Dollars per quota unit
| Plan | Price | Stated quota | $ / quota unit | Discount vs Pro |
|---|---|---|---|---|
| Google AI Pro | $19.99/mo | 1X of Pro | $19.99 | 0% |
| Google AI Ultra (5X) | $99.99/mo | 5X of Pro | $20.00 | 0% |
| Google AI Ultra (20X) | $199.99/mo | 20X of Pro | $10.00 | 50% |
Ultra $99.99 buys headroom at Pro's own rate to the cent; only Ultra $199.99 buys quota at a discount. The $199.99 tier was cut from $250 in the 2026-05-19 restructure. As read on 2026-10-12, the per-tier list lives on one first-party page: antigravity.google/docs/models, which the plans documentation links to with "Refer to Models for a breakdown of model availability." Its table (columns "Free & Google AI Plus", "Google AI Pro", "Google AI Ultra", "Enterprise") marks Claude Sonnet 5.5 (thinking) and Claude Opus 5.5 (thinking) available on Google AI Pro, Google AI Ultra and Enterprise but not on Free & Google AI Plus, with the Pro access footnoted "Available on Google AI Pro for non-trial subscriptions only." It marks Claude Sonnet 4.6 (thinking) and Claude Opus 4.6 (thinking) available on Free & Google AI Plus and Google AI Pro only, no longer on Google AI Ultra or Enterprise, and GPT-OSS-120b available on Free & Google AI Plus, Google AI Pro and Google AI Ultra but not Enterprise. All three of those older models are footnoted "Will be removed on November 2, 2026." So every tier, Enterprise included, has some third-party model today, but no tier has all of them, and after 2026-11-02 the table leaves Free & Google AI Plus with Gemini models only. The plans documentation still lists "Access to third-party models" under "Users on Google AI Ultra receive the following benefits:", without splitting the 5X and 20X tiers, which understates what the models table shows for Pro and Free. The pricing page no longer names models: its $0 card reads "Access to a variety of agent models", linking to /docs/models, and its paid cards open with "Everything in Individual and:" and "Everything in Pro and:". Through 2026-09-28 that $0 card read "Agent model: access to Gemini 3.8 Flash, Gemini 3.7 Flash, Gemini 3.6 Flash, Gemini 3.1 Pro, Claude Sonnet & Opus 4.6, gpt-oss-120b", and on 2026-09-28 the models table put Claude Sonnet 4.6, Claude Opus 4.6 and GPT-OSS-120b on every individual tier and no third-party model on Enterprise. The models page meters "Claude and GPT models" on their own weekly and five-hour limits, separate from Gemini models.
The same heavy week, per tier
150 prompts/day at a 40% heavy-model share, against each tier's ceiling (community-measured Pro baseline scaled by Google's stated multipliers, labelled as such):
| Plan | Ceiling hits | Locked out |
|---|---|---|
| Google AI Pro | day 4.9 | 2.1 days/week |
| Google AI Ultra (5X) | never | fits inside the ceiling |
| Google AI Ultra (20X) | never | fits inside the ceiling |
Community-derived estimate. Try your own pace in the lockout planner.
Your local price is not these dollars
Google prices per market in local currency, and a regional price is not an FX conversion of the US sticker. An authenticated account view priced in THB (observed 2026-07-22) showed:
| Plan | Local price (THB) | US sticker |
|---|---|---|
| Google AI Plus | THB 189/mo | $4.99/mo |
| Google AI Pro | THB 750/mo | $19.99/mo |
| Google AI Ultra | THB 3,500/mo | $99.99/mo |
Observed price sheet, one market, one date; not Google-published rate-card data. Check your own checkout before doing plan math in dollars. The per-quota-unit arithmetic above holds in any currency, because it divides a price by Google's stated multiplier.
FAQ
- Is Google AI Ultra $100 better value than Pro for Antigravity?
- Not per unit of quota. $99.99 buys 5X of Pro's quota, which works out to $20.00 per quota unit against the $19.99 Pro charges for one. Ultra $99.99 buys headroom, not a discount.
- Which Antigravity plan has the cheapest quota?
- Ultra $199.99: 20X of Pro quota works out to $10.00 per quota unit, half of Pro's $19.99. Third-party model access is not what sets it apart: Google's plans page lists that for Google AI Ultra as a whole, and its pricing page lists third-party models from the $0 tier up.
- How much Antigravity quota does each plan include, in absolute numbers?
- Google does not publish absolute quota for any tier, only the relative 5X and 20X multipliers and qualitative words. Absolute numbers exist only as community measurements.