Google dropped a bombshell in November 2025 with Antigravity, a free AI-powered IDE that's not just another code assistant—it's a full-on agentic platform built for autonomous AI workers. Powered by Gemini 3 Pro, Gemini 3 Deep Think, and Gemini 3 Flash models, it shifts from nagging autocomplete to letting agents plan, code, test, and verify shite on their own. Announced alongside Gemini 3, this VS Code fork runs locally and integrates Claude Sonnet 4.5 and GPT-OSS models too, giving you options without vendor lock-in.
Core Features That Actually Matter
Antigravity ditches the single-pane IDE bollocks for a three-surface setup: Editor view (like VS Code with an agent sidebar), Manager view (orchestrates multiple agents in parallel), and deep browser control via Chrome extension. Agents launch your localhost, click around, screenshot, and self-heal bugs—all without you lifting a finger. It's async, verifiable, and spits out Markdown artefacts like task lists, plans, and logs for trust.
- Multi-Agent Orchestration: Run sub-agents on tasks simultaneously across workspaces; track progress from a dashboard.
- Browser Automation: Agents test UIs in real-time, no manual faffing—ideal for full-stack bollocks like FastAPI + React apps.
- Verifiable Outputs: Checkpoints, PR previews, deploy previews; rules and memory for learning over time.
- Familiar Yet Smarter: Tab completion, natural language commands, all VS Code extensions, plus terminal access for debugging.
How It Stacks Up Against Cursor and Windsurf
Users on Reddit and YouTube demos slag off competitors for lacking true multi-agent support or browser smarts—Antigravity nails both, free of charge. Early tests built finance trackers autonomously, though it hit "model overloaded" errors in preview (fixed in recent builds). Privacy follows Google's standards: your code aids sessions but doesn't train models.
| Feature | Antigravity | Cursor | Windsurf |
|---|---|---|---|
| Multi-Agent Manager | Yes | Limited | No |
| Built-in Browser Control | Yes (Chrome ext) | No | Partial |
| Gemini 3 Native | Yes | No | No |
| Price | Free | Paid tiers | Paid |
Real-World Demos and Getting Started
YouTube reviews show agents blueprinting features, coding frontend, spinning up servers, and verifying via browser—self-fixing layout cock-ups on the fly. Download from antigravity-ide.com or antigravity.google; install the Chrome extension, pick your model, and command away. It's agent-first, so start with "Planning Mode" for complex tasks or "Fast Mode" for quick wins.
Why This Matters for Devs in 2026
In a world drowning in AI hype, Antigravity delivers verifiable autonomy that scales your output without turning you into a prompt monkey. Early adopters rave about parallel workflows cutting dev time; expect plugins and MCP support soon. If you're knackered of babysitting Copilot, this is your upgrade—bollocks to the snowflakes, it's built for pros who want results.