Google announced Antigravity, an agent-first coding tool built for Gemini 3 Pro, on November 18, 2025, marking a significant step towards an “agent-first future” in coding and development.
Antigravity accompanies the launch of Gemini 3 Pro and supports third-party models including Claude Sonnet 4.5 and OpenAI’s GPT-OSS. The tool provides agents with direct access to code editors, terminals, and browsers, enabling multiple agents to operate simultaneously without constant human intervention.
A central feature of Antigravity is its reporting mechanism. Agents report their work plans before starting tasks, and as they execute their work, Antigravity generates Artifacts. These include task lists outlining objectives, detailed plans specifying steps, screenshots capturing visual states of the workspace or application, and browser recordings documenting interactions within web pages. Artifacts verify completed actions and upcoming intentions, and Antigravity also logs actions and external tool usage. According to Google, Artifacts are “easier for users to verify” than lists of model actions and tool calls. Developers review these outputs to confirm agent behavior matches expectations.
Antigravity offers two interface views. The Editor view provides an Integrated Development Environment (IDE) experience similar to Cursor and GitHub Copilot. A single agent operates in a side panel alongside the main editing area for real-time assistance during interactive coding sessions. The Manager view enables oversight of multiple agents across various workspaces. Google describes this as “mission control for spawning, orchestrating, and observing multiple agents across multiple workspaces in parallel.” Agents handle tasks independently, with users directing high-level coordination.
Feedback occurs through comments on specific Artifacts. Agents incorporate these comments without pausing ongoing work, preserving workflow continuity while enabling refinements. Agents retain knowledge from previous sessions, storing code snippets for reuse in similar contexts and preserving detailed steps for recurring tasks. This supports progressive improvement as agents build on accumulated experience.
A demonstration video shows Antigravity building a basic flight tracker application. Agents construct the app’s components, conduct tests to ensure functionality, and generate a browser recording of test outcomes. The recording captures the app’s performance in a live browser environment, providing visual proof of execution.
The public preview of Antigravity is free, with generous Gemini 3 Pro rate limits that refresh every five hours. Google notes that only “a very small fraction of power users” encounter these limits during typical operation. Antigravity is available for Windows, macOS, and Linux.
