Google Antigravity IDE: A Revolutionary Agent-First Development Platform
Google Antigravity is an AI-powered integrated development environment announced on November 18, 2025, alongside Google's Gemini 3 model release. Unlike traditional coding assistants that only provide autocomplete suggestions, Antigravity represents a paradigm shift toward agent-first development where autonomous AI agents handle complete software workflows from planning to verification.
Core Features and Capabilities
Antigravity introduces two distinct operational modes for developers:
- Editor View: A familiar VS Code-style interface enhanced with AI-powered tab autocompletion, natural language code commands, and an integrated agent sidebar
- Manager View: A control center for orchestrating multiple agents working in parallel across different workspaces, enabling asynchronous task execution
The platform's agents can autonomously operate across your editor, terminal, and browser simultaneously, planning and executing complex end-to-end software tasks independently. A unique feature is the built-in Chrome extension integration that allows agents to directly test and interact with web applications they're building, providing real-time feedback and validation.
AI Model Support and Artifacts System
Google Antigravity is powered primarily by Gemini 3 Pro but supports multiple AI models including Anthropic's Claude Sonnet 4.5 and OpenAI's GPT-OSS variants, allowing developers to switch between models based on their specific needs. The platform generates "Artifacts"—verifiable deliverables such as task lists, implementation plans, screenshots, and browser recordings—to provide transparent insights into the agent's development process. These artifacts allow developers to review agent logic at a glance and provide Google-doc-style comments for feedback without interrupting the agent's execution flow.
Availability and Pricing
Google Antigravity is available in free public preview for individuals across Windows, macOS, and Linux platforms. The platform offers generous rate limits on Gemini 3 Pro at no cost, distinguishing itself as the only AI IDE with built-in browser automation, multi-agent orchestration, and access to Google's latest Gemini 3 model completely free. Developers can download the platform at antigravity.google/download.
Agent-First Development Workflow
Rather than manually writing code line by line, developers describe high-level tasks in natural language, and agents handle the planning, coding, debugging, and verification automatically. The platform treats learning as a core primitive, allowing agents to save useful context and code snippets to a knowledge base to improve performance on future tasks. This shift from traditional manual coding to task-oriented orchestration enables developers to operate at a higher abstraction level while maintaining control through asynchronous feedback mechanisms.