A decision for a beginner, not a spec sheet. Scores are our weights. Prices are the public plans, and anything marked verify on the tool page should be re-checked before you pay.
Pick Google Antigravity if you are trying an editor agent without a subscription.
Pick Jules if you want bug fixes, version bumps, and small features on a repo you already have.
A free agent IDE, with higher quotas on Google AI Pro and Ultra.
Cheapest verified paid plan: Google AI Pro · $19.99/mo
An async agent that takes a GitHub task and opens a pull request.
Cheapest verified paid plan: Google AI Pro (Jules in Pro) · $19.99/mo
Web app or SaaS
Mobile app
Game
Website or landing page
Automation or script
No code
I can follow a change
I already develop
Last verified 2026-10-19
Individual
Free
VerifiedUnlimited Tab and Command requests. Weekly agent quota. Gemini models, including Gemini 3.8 Flash, which the plans doc names as a core agent model. No published prompt count.
The Antigravity pricing page lists this at $0/mo.
Individual
$19.99/mo
VerifiedHigher Antigravity quota, refreshed every five hours until a weekly limit. AI credits can cover overage if you allow it. Also a Google One plan with storage and other Google AI benefits.
The dollar amount is the Google AI Pro price on Google One. Antigravity's own pricing page describes the higher limits and does not print $19.99.
Individual
$99.99/mo
VerifiedHighest Antigravity quota class, refreshed every five hours, plus third-party models. Google labels this 5x Pro Gemini usage.
Price is from Google One and Gemini subscription pages, which are the plans Antigravity docs say raise the quota.
Individual
$199.99/mo
VerifiedThe highest weekly limits Google documents for these plans, labeled 20x Pro Gemini usage.
Same source split as the 5x tier: quota rules on Antigravity docs, price on Google One.
Last verified 2026-10-19
Individual
Free
Verified15 tasks per rolling 24 hours, 3 concurrent tasks, Gemini 2.5 Pro. Jules' own label for this row is evaluating the agent on real work.
Task counts are on jules.google and the usage-limits doc. Neither page prints a dollar price because this row is free.
Individual
$19.99/mo
Verified100 tasks per rolling 24 hours, 15 concurrent tasks, and higher access to the latest model. The Jules plan table says that starts with Gemini 3 Pro. A March 9, 2026 Jules changelog says Gemini 3.1 Pro replaced Gemini 3 Pro as the default for Pro users.
Jules docs say Jules in Pro is included with Google AI Pro. The $19.99 price is the Google AI Pro price on Google One, which also includes storage and other Google AI products. Google AI Plus at $4.99 is not listed by Jules as an upgrade. Google One only labels Plus Jules limits as Limited, so it is not a paid Jules row.
Individual
$99.99/mo
VerifiedGoogle One labels Jules task limits, concurrent limits, and latest-model access as Higher than Pro. Jules' plan table publishes one Ultra row of 300 tasks per rolling 24 hours and 60 concurrent tasks, and does not say whether that row is this 5x plan, the 20x plan, or both.
The $99.99 price is Google AI Ultra 5x on Google One. The task number is left off this card so a single Ultra row is not pasted onto both prices.
Individual
$199.99/mo
VerifiedGoogle One labels Jules task limits, concurrent limits, and latest-model access as Highest. The same Jules Ultra row of 300 tasks and 60 concurrent tasks is not assigned to this price either.
The $199.99 price is Google AI Ultra 20x on Google One. Jules docs describe one Ultra benefit and one set of task numbers.
Free quota refreshes weekly. Google AI Pro refreshes every five hours until a weekly limit. Ultra refreshes every five hours and has the highest weekly limits. Prompt counts are not published because heavier tasks spend more quota.
On the free plan, wait for the weekly refresh. There is no credit overage.
Task limits are a rolling 24 hours, not midnight. Concurrent-task caps apply at the same time. Family-plan members each have their own limits. They are not pooled.
When the new-task button turns off, keep reviewing tasks that are already running. History stays available.
Google Antigravity Google AI Pro and Jules Google AI Pro (Jules in Pro) are both listed at $19.99/mo.
Google Antigravity is for trying an editor agent without a subscription, gemini-first coding on a weekly quota, and a $20-ish step up via Google AI Pro if the free week runs out.
Jules is for bug fixes, version bumps, and small features on a repo you already have, handing off a task and reviewing the pull request later, and a free daily allowance with a published task count.
Google Antigravity scores 2 out of 5 for someone who does not want to read code. Jules scores 2 out of 5. The scores are the same. Better than a pure terminal, and you are still in an IDE. You need a GitHub repo and you need to read the pull request. This is not a form that publishes an app.
Google Antigravity: Free. Unlimited Tab completions and Command requests, Gemini models, and a weekly agent quota. The quota is not a published prompt count. It refreshes weekly, not every five hours. Jules: 15 tasks per rolling 24 hours, 3 concurrent, on Gemini 2.5 Pro. Jules describes this plan as evaluating the agent on real work. It does not host the project.