Free Gemini 3 Pro & Sonnet 4.5: Google’s $2.4B AI Editor

Google’s $2.4B Windsurf-built Antigravity IDE: run 3 Gemini 3 Pro agents free, parallel coding & auto-testing

Meng Li

Nov 22, 2025

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Google's Antigravity IDE is the Real Story Behind Gemini 3 | Stark Insider

For those who have used Windsurf, opening Google’s new IDE Antigravity might give you an uncanny sense of familiarity.

The same VS Code reskin, the same Agent logic, even certain interaction details feel like déjà vu.

You’re not wrong—Antigravity is the AI editor Google built after spending a whopping $2.4 billion to acquire Windsurf’s entire leadership team and the first 30 core AI engineers.

However, its philosophy is completely different from all previous AI editors.

Agent-First Approach

When you open Antigravity, the first thing you see isn’t the familiar file list, but an Agent Manager dashboard.

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