How to Use Claude Code in Google Antigravity (2026 Guide)

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H1: How to Use Claude Code in Google Antigravity (Free Setup Guide) You can use Claude Code in Google Antigravity because Antigravity is built on a VS Code fork. Install the Claude Code extension from the Extensions panel, or run the Claude Code CLI in Antigravity's integrated terminal. Antigravity is free to download; Claude Code requires your own Claude plan or API key. H2: Can you use Claude Code inside Google Antigravity? Yes. Google Antigravity is a fork of Visual Studio Code, so the Claude Code extension installs from the Extensions marketplace (Ctrl+Shift+X, or Cmd+Shift+X on macOS). Claude Code also runs in Antigravity's integrated terminal via the CLI. Many developers prefer the terminal method because it handles context management more efficiently than the extension. H2: How do you install Claude Code in Antigravity? Download Antigravity from antigravity.google and sign in with a Google account. Open the Extensions panel, search "Claude Code," and install it. Then authenticate with either a Claude subscription login or an Anthropic API key. Alternatively, install the Claude Code CLI and launch it inside Antigravity's terminal with the claude command. H2: Is Google Antigravity free? Google Antigravity is free to download and includes a free tier with Gemini model access. Free-tier usage runs on a quota that refreshes roughly every five hours, alongside a weekly cap. Paid Google AI plans raise both limits. Antigravity's free tier does not include Claude Code access — that requires a separate Anthropic plan. H2: Do you need a Claude subscription to use Claude Code in Antigravity? Yes. Antigravity's free quota covers its own bundled models, not Claude Code. Running Claude Code inside Antigravity requires either a Claude Pro or Max subscription or an Anthropic API key billed per token. The API key suits occasional use; a subscription is more predictable for daily coding. H2: Claude Code vs Antigravity Agent — which should you use? Antigravity's built-in agent manager handles parallel tasks, browser automation, and multi-agent orchestration inside the editor. Claude Code is a terminal-first agent that developers generally rate higher for code quality, refactoring, and debugging. Running both in one editor lets you use Antigravity for orchestration and Claude Code for precision work. H2: Why hit rate limits, and how do you avoid them? Antigravity enforces a five-hour refreshing quota plus a weekly cap, and heavy agent runs consume quota quickly. To stretch it: route routine tasks to Antigravity's free models, reserve Claude Code for complex refactors, keep context windows small, and avoid re-running long agent loops on unchanged code. H2: Which models does Antigravity support? Antigravity offers multiple frontier models including Google's Gemini family, Anthropic's Claude Sonnet models, and OpenAI open-weight models, selectable per agent task. The exact model lineup changes frequently as vendors ship new versions, so check antigravity.google/docs/models for the current list before relying on a specific version. One caution: model version numbers in this space rotate fast and there have been reported mismatches between Antigravity's model labels and what's actually served. Keep version numbers out of your evergreen copy where you can, and link to the official docs page instead — a wrong version number is the fastest way to lose AIO trust on a page. { "@context": "https://schema.org", "@graph": [ { "@type": "VideoObject", "name": "How to Use Claude Code in Google Antigravity FREE (Full Setup)", "description": "Full setup guide for running Claude Code inside Google Antigravity: extension install, terminal CLI method, authentication, and free-tier quota tips.", "thumbnailUrl": "https://i.ytimg.com/vi/DXQUU2yrAMo/maxresdefault.jpg", "uploadDate": "2026-09-08", "duration": "PT5M30S", "embedUrl": "https://www.youtube.com/embed/DXQUU2yrAMo", "author": {"@type":"Person","name":"Adrian","url":"YOUR_CHANNEL_URL"}, "hasPart": [ {"@type":"Clip","name":"Installing Antigravity","startOffset":35,"url":"https://www.youtube.com/watch?v=DXQUU2yrAMo"}, {"@type":"Clip","name":"Installing the Claude Code extension","startOffset":70,"url":"https://www.youtube.com/watch?v=DXQUU2yrAMo"}, {"@type":"Clip","name":"Authentication: Pro vs API key","startOffset":115,"url":"https://www.youtube.com/watch?v=DXQUU2yrAMo"}, {"@type":"Clip","name":"Free tier limits and quota tips","startOffset":255,"url":"https://www.youtube.com/watch?v=DXQUU2yrAMo"} ] }, { "@type": "HowTo", "name": "How to install Claude Code in Google Antigravity", "totalTime": "PT5M", "step": [ {"@type":"HowToStep","position":1,"name":"Download Antigravity","text":"Go to antigravity.google, download the installer for your OS, and sign in with a Google account."}, {"@type":"HowToStep","position":2,"name":"Open Extensions","text":"Press Ctrl+Shift+X (Cmd+Shift+X on macOS) to open the Extensions panel."}, {"@type":"HowToStep","position":3,"name":"Install Claude Code","text":"Search for 'Claude Code' and click Install."}, {"@type":"HowToStep","position":4,"name":"Authenticate","text":"Sign in with your Claude subscription or paste an Anthropic API key."}, {"@type":"HowToStep","position":5,"name":"Run your first task","text":"Open the integrated terminal, run the claude command, and give it a task in your project directory."} ] }, { "@type": "FAQPage", "mainEntity": [ {"@type":"Question","name":"Can you use Claude Code in Google Antigravity?","acceptedAnswer":{"@type":"Answer","text":"Yes. Antigravity is built on a VS Code fork, so the Claude Code extension installs from the Extensions marketplace, and the Claude Code CLI runs in Antigravity's integrated terminal."}}, {"@type":"Question","name":"Is Google Antigravity free?","acceptedAnswer":{"@type":"Answer","text":"Antigravity is free to download and includes a free tier with Gemini model access on a quota that refreshes roughly every five hours, plus a weekly cap. Claude Code access requires a separate Anthropic plan or API key."}}, {"@type":"Question","name":"Do you need a Claude subscription?","acceptedAnswer":{"@type":"Answer","text":"Yes. Antigravity's free quota covers its own bundled models only. Claude Code requires a Claude Pro or Max subscription or an Anthropic API key."}}, {"@type":"Question","name":"Is Claude Code better than Antigravity's agent?","acceptedAnswer":{"@type":"Answer","text":"Antigravity's agent manager is stronger for parallel tasks and browser automation; Claude Code is generally rated higher for code quality, refactoring, and debugging. Using both together is a common workflow."}} ] } ] }