Google Antigravity

What Is Google Antigravity? A Complete Guide to Agent-First Development

Google Antigravity is a revolutionary AI-powered integrated development environment that transforms how developers build software by deploying autonomous AI agents capable of planning, executing, and validating complex coding tasks across the editor, terminal, and browser — without requiring line-by-line manual coding intervention.

Announced alongside Gemini 3 in November 2025, Antigravity represents a fundamental shift from traditional code assistance to true autonomous development. Instead of simply autocompleting lines or suggesting code snippets, Antigravity's AI agents independently analyze requirements, break down tasks into structured plans, write production-ready code, execute terminal commands, test applications in integrated Chrome browsers, and generate verifiable artifacts proving their work. This agent-first approach allows developers to operate at a higher strategic level, delegating entire features while focusing on product vision and architecture.

What Does Google Antigravity Do? Key Features

Google Antigravity provides a comprehensive development platform built specifically for autonomous AI agents:

🤖 Autonomous Agent System Agents independently handle multi-step development tasks from planning through deployment. You describe what you want to build, and agents create implementation plans, write code across multiple files, run terminal commands, install dependencies, and test the final result. This moves development from manual coding to task delegation and oversight.

🎯 Verifiable Artifacts Every agent generates tangible deliverables including task lists, implementation plans, code diffs, screenshots, and browser recordings. These artifacts provide transparent proof of work, allowing you to verify agent decisions at a glance and leave Google Docs-style comments for feedback without interrupting execution flow.

🌐 Integrated Browser Testing Browser subagents automatically launch Chrome, interact with your application's UI, verify functionality, capture screenshots, and record walkthrough videos. This automated testing ensures applications work correctly before presenting results to you, eliminating manual testing cycles.

🧠 Multi-Model Support Antigravity supports Google's Gemini 3 Pro, Gemini 3 Deep Think, and Gemini 3 Flash, plus Anthropic's Claude Sonnet 4.5 and Claude Opus 4.5, and OpenAI's GPT-OSS models. Switch between models based on task requirements within the same session without context loss or platform switching.

📊 Agent Manager Dashboard The unique Manager View serves as mission control for orchestrating multiple agents running in parallel across different workspaces. Monitor agent status, review artifacts, and manage asynchronous task execution while agents work independently on different features simultaneously.

💡 Learning Knowledge Base Agents learn from your feedback and past work, building an internal knowledge base that improves understanding of your coding style, project requirements, and successful task completion patterns. This continuous learning makes agents progressively more effective at handling your specific development needs.

Conclusion

Google Antigravity is a powerful AI development platform for software engineers, full stack developers, and development teams who want to accelerate productivity through intelligent automation and autonomous task delegation. It's particularly valuable for developers working on web applications, complex multi-step features, and projects requiring frequent testing cycles.

While it's currently in public preview with some rate limits and occasional bugs, its agent-first architecture, browser automation capabilities, and verifiable artifact system make Google Antigravity one of the most innovative AI coding platforms entering the development landscape in 2025.