Antigravity

Google Antigravity is an agent-first software development platform from Google. It is offered as several surfaces: a desktop app that works as a command center for running multiple local agents in parallel (with Projects, multiple workspaces and scheduled messages), a terminal-first CLI for autonomous coding agents and background subagents, a full agentic IDE with an agent manager and artifacts, and an SDK for prototyping custom agents in Python on top of the Antigravity agent harness.

The product emphasizes verifiable agent output through artifacts and verification tests, and includes browser-in-the-loop agents for automating UX tasks. Recent additions listed on the site include voice mode, a plugin marketplace, custom agents, a Knowledge Work edition, and support for Google's Gemini 4 model family (Hydrogen, Carbon, Argon), including an orchestrator and a /swarm command. One YouTube creator reported that Gemini 4 Argon is available in low, medium and high modes and requires an Ultra subscription.

The desktop app is available on macOS, Windows, Linux and Googlebook. Individuals can use it at no charge with basic weekly rate limits; Google AI Pro and Ultra subscriptions raise the limits. Organizations can access it through Google Cloud, with API consumption pricing or Gemini Enterprise plans.