Google Antigravity
Google Antigravity
Hand coding work to several AI agents running in parallel, free with Gemini; higher quotas and the latest Claude models need Google AI Pro/Ultra.
Google's agentic development platform: an app for running many agents in parallel, an IDE, a CLI (agy) and an SDK, powered by Gemini and Claude.
Overview
Google Antigravity is Google's platform for building software with AI agents. You describe a goal, the agent plans, writes code, runs commands and checks the result, and you review each step.
Antigravity has several surfaces: the Antigravity 2.0 app manages many agents running in parallel by project (each agent can work in its own git worktree, with scheduled runs), Antigravity IDE is a full code editor with an agent manager, Antigravity CLI (the agy command) is for terminal users, and a Python SDK lets you build your own agents. Agents can also drive Chrome to test user interfaces.
According to the official site, individuals can use it at no charge with Gemini models (such as Gemini 3.1 Pro and Gemini 3.8 Flash) and a weekly quota. Google AI Pro and Ultra plans get higher quotas (refreshed every five hours) and the latest Claude models. It runs on macOS, Windows and Linux.
Highlights
Many agents in parallel
Antigravity 2.0 manages several agents per project, each able to work in its own git worktree so they don't collide.
Full IDE
Antigravity IDE understands your codebase, includes an agent manager and unlimited Tab completions.
agy CLI
Run agents in the terminal, with background subagents and a plan to review before work starts.
Browser-using agents
Agents open Chrome to test UIs and automate repetitive steps.
Multiple models
Gemini 3.1 Pro and Gemini Flash on every plan; the latest Claude models on Pro and Ultra.
Scheduled runs
Schedule agents for recurring work such as dependency updates or weekly reports.
What it's for
Prototype quickly
Describe the app, let the agent plan and build the UI and backend, and approve each step.
Fix several bugs at once
Give each bug to an agent in its own worktree, then review and merge.
Test the UI
Have an agent open the browser, click through key flows and report issues with screenshots.
Understand legacy code
Ask an agent to explain the architecture and data flow of a project you inherited.
Recurring jobs
Schedule an agent to check for outdated dependencies or summarise the week's changes.
How to use it
- 1
Download Antigravity
Download Antigravity 2.0 or Antigravity IDE for macOS, Windows or Linux from the official site.
$https://antigravity.google/download - 2
Sign in
Sign in with a personal Google account, or choose Business account if your company uses Gemini Enterprise.
- 3
Create a project
Add one or more folders or git repositories the agent may work in.
- 4
Give the agent a goal
Type the goal and choose Local mode (works directly in your folders) or New worktree mode (works in an isolated worktree).
- 5
Review the result
Check the agent's plan and proposed changes, then accept or ask for fixes before merging.
- 6
Use it in the terminal (optional)
Install Antigravity CLI and run agy in your project folder.
$https://antigravity.google/docs/cli/overview
Real-world example
A three-person startup in Da Nang needs an order management page for its online shop. The developer creates a project in Antigravity, has one agent build the order list page and another write the order filtering API in its own worktree, then lets an agent open the browser to test creating and cancelling orders. At the end of the day they review each change and merge it into the main branch.
Tips & notes
Start small
Get used to how the agent plans and proposes changes before handing it large features.
Use worktrees for parallel work
One worktree per agent keeps changes from overwriting each other.
Always review changes
Agents can run commands and edit many files; review before merging and never let an agent push to production on its own.
Limit access
Only add the folders the agent needs, and keep files with passwords or API keys out of its reach.
FAQ
Is Antigravity free?
Yes. According to the official site, individuals use it at no charge with a weekly quota; Google AI Pro and Ultra plans get higher quotas and can buy AI credits.
Which models can I use?
Every plan has Gemini 3.1 Pro and Gemini Flash models; the latest Claude models are for Pro (non-trial), Ultra and Enterprise.
How is Antigravity different from Cursor?
Both are AI coding tools; Antigravity focuses on managing many agents in parallel and has its own app, CLI and SDK.
Does it work in VS Code or JetBrains?
The docs list extensions for VS Code, JetBrains, Visual Studio, Zed and Xcode.
Useful links
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