Google Antigravity is an AI-powered agentic development platform from Google, announced alongside the Gemini 3 model in November 2025, that places autonomous AI agents at the center of the software development process. Built as a heavily modified fork of Visual Studio Code, it enables developers to deploy agents that autonomously plan, execute, and verify complex coding tasks across the editor, terminal, and browser simultaneously. Antigravity represents Google's vision for the next generation of software development where AI agents handle end-to-end implementation while developers focus on high-level direction and review.
Antigravity's agent-first architecture allows AI agents to autonomously plan multi-step tasks, execute them in parallel, and validate their own code through automated testing, going well beyond simple code completion or chat-based assistance. The platform is powered primarily by Gemini 3.1 Pro and Gemini 3 Flash, while also supporting Anthropic's Claude Sonnet 4.6, Claude Opus 4.6 with Thinking, and OpenAI's open-weights GPT-OSS 120B — a multi-model lineup that lets teams pair a Gemini 3 Pro planning agent with a Claude Opus implementation agent and a Gemini 3 Flash test agent in a single workflow. Key features include asynchronous task dispatch for fire-and-forget workflows, deep integration with Google Cloud services, and a familiar VS Code-based interface that preserves compatibility with existing extensions and settings.
Antigravity targets professional developers and engineering teams who want to leverage autonomous AI agents for large-scale development tasks, from feature implementation and refactoring to testing and documentation generation. It is distributed as both a desktop app and the new Antigravity CLI (built in Go), introduced alongside Antigravity 2.0 at Google I/O 2026 on 19 May 2026, with cross-platform support for macOS, Windows, and Linux. The platform follows a freemium model: a public-preview free tier with rate limits, Pro at $20 per month, AI Ultra at $100 per month (5x the Pro quota), and a higher AI Ultra tier at $200 per month (lowered from $250 at I/O 2026) for power users. Antigravity competes directly with Cursor, Windsurf, and AWS Kiro in the emerging agentic IDE market, differentiating itself through deep Google Cloud integration, the strength of the Gemini 3 model family, and the multi-model agent harness shared by the desktop app and CLI.
