Pricing

Antigravity on Google AI Plus vs Pro (2026): Which Plan for Coding?

Yes, but Google AI Plus ($4.99) gets the same Antigravity models as Free. Pro ($19.99) adds Claude Sonnet 5.5, Opus 5.5, Gemini 4 Argon and 5-hour refreshes.

By Engineer Foodie Desk Oct 28, 2026 · updated Nov 8, 2026 ✓ Sources checked Nov 8, 2026

9 min read

Google AI plan prices and Antigravity agent-request labels checked Oct 28–29, 2026 on Google One’s Google AI plans page; Plus and Pro cards checked Nov 2, 2026 on gemini.google; Antigravity pricing cards checked Oct 28, 2026 on antigravity.google/pricing; models and quotas checked Nov 3, 2026 in Antigravity’s models docs and plans docs; student offer checked Oct 29, 2026. Facts reused from our research files; nothing on this page was re-checked on Nov 8, 2026. Every source is listed at the bottom. No affiliate links on this page (how we work).

Short answer: for Antigravity, Plus is Free with a receipt. Pro is the real upgrade. Google AI Plus is $4.99 a month and gets the same Antigravity models as the free plan. Google AI Pro is $19.99 a month and adds Gemini 4 Argon, Claude Sonnet 5.5, Claude Opus 5.5, a quota that refreshes every five hours, and the option to keep going with AI credits (verified Oct 28–Nov 3, 2026).

As of our Oct 28–29, 2026 checks, Google’s own plan comparison gives Plus a label for Antigravity agent requests: “Limited”, against Pro’s “Expanded” (Google AI plans page). It’s still not a number, but it’s the first time Google has said in writing that Plus and Pro sit at different levels. And Google scheduled Free and Plus to lose their last Claude models on November 2, 2026.

Does Google AI Plus include Antigravity?

Antigravity isn’t locked behind Plus: Google’s Antigravity FAQ says personal accounts can use it “on any plan, including the free tier” (verified Nov 3, 2026). What Plus adds is a label, not models: Google’s AI plans page rates Antigravity agent requests “Limited” on Plus versus “Expanded” on Pro (verified Oct 28–29, 2026), and the plans docs give Plus the same “A meaningful quota, refreshed weekly” as Free (verified Nov 3, 2026). Google publishes no numeric limit for either plan, and the full mechanics are in Antigravity usage limits.

Quick answer (facts verified Oct 28–Nov 3, 2026)

Stay on Free if Gemini 3.8 Flash and weekly limits are enough. $0. Details in Is Antigravity free?
Skip Plus for Antigravity. $4.99 gets Free’s model list, a “Limited” agent-request label and no AI credits. Buy it for the 400 GB of storage or the Gemini app, not for coding.
Pay for Pro ($19.99) if you want Claude Sonnet 5.5, Claude Opus 5.5 or Gemini 4 Argon, five-hour refreshes, and AI-credit overflow.
Students in the US: eligible college students 18+ get a 12-month trial of Google AI Pro, redeemable until Dec 31, 2026, then $19.99/month.

Free vs Plus vs Pro, side by side

Plan	Price	Models	Limits
Free	$0	Gemini 3.8 Flash	Basic, weekly
Google AI Plus	$4.99/mo	Same as Free	“Limited”, weekly
Google AI Pro	$19.99/mo	Adds Argon, Claude 5.5	5-hour + weekly

USD, US pricing. Prices: Google AI plans, verified Oct 28–29, 2026, and gemini.google, verified Nov 2, 2026. Models: models docs, verified Nov 3, 2026. Limits: pricing (Oct 28, 2026), plans docs (Nov 3, 2026). No numeric Antigravity limits are published for any plan.

Pro is $19.99 a month or $199.99 a year (Google AI plans page, verified Oct 28–29, 2026), which works out to about $16.67 a month if you pay for a year up front. Ultra is “billed monthly only”. Outside the US, check the current price on Google’s page for your region. The full ladder, Ultra included, is in Antigravity pricing.

Why Plus shares the Free column

Google’s own docs put Plus and Free together. The models docs have a single column headed “Free & Google AI Plus” (checked Oct 26, 2026). The plans docs put everyone “not on Google AI Pro or Ultra plans” in one bucket: “A meaningful quota, refreshed weekly” and “A weekly rate limit” (checked Oct 25, 2026; same wording at our Nov 3, 2026 check).

What Plus does get is mostly outside Antigravity. The Plus card on gemini.google lists the Flash model, “double the usage limits” in the Gemini app, 200 Google Flow credits and 400 GB of storage, with no Antigravity line (checked Nov 2, 2026). The only Antigravity mention for Plus is the comparison row on Google One: agent requests “Limited”, next to Pro’s “Expanded”, Ultra’s “Higher” and Ultra 20x’s “Highest”.

The docs disagree a little. The overview says to “upgrade to Google AI Plus, Pro, or Ultra for higher rate limits and optional AI credit overages” (checked Oct 21, 2026). But Google’s AI credits help page says credits are “only available for Google AI Pro and Google AI Ultra plans” (checked Oct 27, 2026). So on Plus there’s no overflow, whatever the overview implies.

Google’s labels have become Jian-Yang’s app: “Limited”, “Expanded”, “Higher”, “Highest”. It sorts the plans into hot dog and not hot dog, but it won’t tell you how many hot dogs you get.

What Pro adds

Models. From the models docs (checked Oct 26, 2026; Argon and Claude 5.5 rows and notes unchanged at our Nov 3, 2026 check):

Model	Free & Plus	Pro
Gemini 3.8 Flash	Yes	Yes
Gemini 4 Argon	No	Yes†
Claude Sonnet 5.5	No	Yes*
Claude Opus 5.5	No	Yes*
Claude Sonnet 4.6	Until Nov 2	Until Nov 2
Claude Opus 4.6	Until Nov 2	Until Nov 2
GPT-OSS-120b	Until Nov 2	Until Nov 2

† “Available with paid Google AI Pro plans or on trial with eligible premium devices.” * “Available on Google AI Pro for non-trial subscriptions only.”

Argon has one odd catch: “Not available in Antigravity IDE. Available in the Antigravity App, Antigravity CLI, and IDE extensions.” Google’s Pro card on Google One calls it “Expanded access to Gemini 4 Argon in Google Antigravity and Google AI Studio” (checked Oct 28, 2026). So it’s expanded everywhere except Google’s own editor.

Limits. Pro gets “A high, generous quota, refreshed every five hours until the weekly limit is reached” and “A higher weekly rate limit” (plans docs, verified Nov 3, 2026). The pricing card says “More rate limits”; gemini.google calls Pro’s Antigravity access “Entry rate limits to agent model” (Nov 2, 2026). The app shows “Weekly Limit Remaining” and “Five Hour Limit Remaining” meters, with a separate meter for “Claude and GPT models” (models docs, Oct 26, 2026). Numbers: not published.

AI credits. Pro and Ultra cards list a “Flexible AI credit pool”. When your quota runs out, an “AI Credit Overages” setting (Never or Always) decides whether Antigravity spends credits (plans docs, verified Nov 3, 2026). Google sells credits in amounts like “2,500, 5,000, or 20,000 AI credits”, but the official pages we read don’t publish a credit price, so check the current price before you turn on Always.

November 2, 2026: the removals that hit Plus

The models docs marked Claude Sonnet 4.6, Claude Opus 4.6 and GPT-OSS-120b as “Will be removed on November 2, 2026” (checked Oct 26, 2026; the note was still printed at our Nov 3, 2026 check, when the docs listed Gemini 3.8 Flash on all plans and Argon plus the Claude 5.5 models on Pro).

Free and Plus: after Nov 2, the scheduled list is Gemini 3.8 Flash. No Claude at all.
Pro: loses the same three, but keeps Claude Sonnet 5.5, Claude Opus 5.5 (non-trial) and Gemini 4 Argon.

This is the change that matters most. Until Nov 2, 2026, a Plus subscriber could use Claude Opus 4.6 in Antigravity. After it, that $4.99 buys one Flash model, the same one Free users get. Taking the only Claude a paying Plus customer had, with a footnote as the warning, is frustrating, and Google hasn’t said whether Plus gets anything in return.

Who should pay for Pro, and who shouldn’t

Stay on Free if you mostly use Tab completions and Command requests (both “Unlimited” on Free) and run agents occasionally on Flash.

Don’t buy Plus for Antigravity. Buy it if you want 400 GB of storage and more Gemini app use. For coding, it’s Free with a “Limited” label.

Buy Pro if you want Claude 5.5 or Argon in your agent loop, or you keep hitting weekly limits. Use the App, CLI or IDE extensions if you want Argon, and leave AI Credit Overages on Never until you’ve seen a week of usage. Comparing Pro with Anthropic’s $20 plan? See Google AI Pro vs Claude Pro. Comparing editors? Antigravity vs Cursor, or the full field in AI coding tools compared.

Students (US, 18+): eligible US college students get a “12-month trial” of Google AI Pro, redeemable until Dec 31, 2026, then $19.99/month (gemini.google/students and Google One Help, checked Oct 29, 2026). Outside the US, Google lists a “Google AI Pro with YouTube Premium Student bundle”; its price is not on the page. Because it’s a trial, and the Claude 5.5 models are “non-trial subscriptions only”, check your model picker.

Here’s what I’d do

Start on Free and see whether you miss Claude after the 4.6 models were scheduled out on Nov 2, 2026. If you do, go straight to Pro and skip Plus. If you don’t, Free is fine, and the $4.99 is better spent on a burrito. The free tier is covered in Is Antigravity free?

Already on Pro and hitting limits? Google AI Pro vs Ultra covers the next step up.

FAQ

Is Antigravity better on Google AI Pro than Plus? Yes, Pro adds Gemini 4 Argon, Claude Sonnet 5.5 and Opus 5.5, five-hour quota refreshes and AI credits, while Plus has Free’s models.

Does Google AI Plus include Antigravity? Antigravity is free for everyone; Plus adds no Antigravity models, and Google labels its agent requests “Limited” vs Pro’s “Expanded”.

What are Antigravity limits on Google AI Plus vs Pro? Google publishes no numbers; Plus gets a weekly quota and Pro gets a quota refreshed every five hours up to a higher weekly limit.

Can I use Google AI Plus with Antigravity? Yes; Antigravity works on any plan including free, and Google labels Plus agent requests “Limited” with the same weekly quota and models as Free.

What are Antigravity limits on Google AI Pro? Google calls them “Expanded”: a high quota refreshed every five hours up to a higher weekly limit, with AI-credit overages; numeric limits are not published.

Is Antigravity free? Yes, the $0 plan includes unlimited Tab and Command requests and agent models under basic weekly rate limits; see Is Antigravity free? for details.

Sources

Google One, Google AI plans (Plus $4.99, Pro $19.99 and Annual $199.99, Ultra $99.99/$199.99 monthly only, Antigravity agent-request labels, Pro “Code faster” lines): https://one.google.com/about/google-ai-plans/ (verified 2026-10-28 and 2026-10-29)
Google, Gemini subscriptions (Plus and Pro inclusions, Antigravity “Entry rate limits” on Pro, limits footnote): https://gemini.google/subscriptions/ (verified 2026-11-02)
Antigravity pricing (plan cards, AI credit pool): https://antigravity.google/pricing (verified 2026-10-28)
Antigravity models docs (Free & Google AI Plus column, Nov 2 removals, meters verified 2026-10-26; Argon and non-trial notes, models by plan re-verified 2026-11-03): https://antigravity.google/docs/models (verified 2026-11-03)
Antigravity plans docs (quotas by plan, AI Credit Overages): https://antigravity.google/docs/plans (verified 2026-11-03)
Antigravity overview docs (Plus upgrade wording): https://antigravity.google/docs/overview (verified 2026-10-21)
Google One Help, AI credits (Pro and Ultra only, purchase amounts): https://support.google.com/googleone/answer/17103110 (verified 2026-10-27)
Google AI Pro student offer (12-month trial, redeem until Dec 31, 2026, then $19.99/mo): https://gemini.google/students/ (verified 2026-10-29)
Google One Help, student offer (non-US YouTube Premium Student bundle): https://support.google.com/googleone/answer/17422238 (verified 2026-10-29)
Antigravity FAQ (personal accounts on any plan, including the free tier): https://antigravity.google/docs/faq (verified 2026-11-03)