Google launches Antigravity, an AI-first coding platform built on Gemini 3

Google has launched Antigravity, a development platform that transforms how AI agents write and test code by giving them direct control over editors, terminals, and browsers—transforming them from helpful assistants into independent software developers that can build, test, and verify their own work.

The platform runs on Gemini 3 Pro—which tops the LMArena leaderboard with a 1,501 Elo score and achieves 76.2% on SWE-bench Verified—and additionally supports Claude Sonnet 4.5 and GPT-OSS. It’s available for download on Windows, macOS, and Linux.

Antigravity introduces what Google calls "Artifacts"—task lists, screenshots, and browser recordings that document what agents have done and plan to do, replacing overwhelming action logs with digestible documentation developers can actually review.

Antigravity has two interfaces for different workflows

Antigravity offers Editor view, a traditional IDE experience with an agent in the side panel, and Manager view, which Google calls "mission control" for running multiple agents across separate workspaces simultaneously. The platform captures its own screenshots and screen recordings, then lets developers annotate them with Google Docs-style comments to redirect agents mid-task without stopping their work.

Built on Microsoft's VS Code, Antigravity inherits compatibility with thousands of existing extensions while adding agent-specific capabilities. A Chrome extension enables agents to run code in real browsers, observe behavior, and make adjustments—a workflow particularly powerful for web applications that need visual verification.

The platform centers on four design principles: trust through transparent reporting, autonomy via direct tool access, continuous feedback through inline annotations, and self-improvement by learning from past projects. Google provides "generous rate limits" for Gemini 3 Pro that refresh every five hours, claiming only "a very small fraction of power users" will hit them.