Google Antigravity: First Impressions of the Agent-First IDE

Antigravity, launched alongside the Gemini 3 model on November 18, 2025, represents a transformative shift in developer workflows by offering a standalone IDE where developers act as architects while AI agents handle the construction. Unlike traditional coding tools, Antigravity's "agent-first" architecture allows AI to autonomously plan, execute, and verify tasks, supported by technology from a $2.4 billion "acqui-hire" of the Windsurf startup team. The IDE features two operation modes: Editor View for traditional AI-assisted coding and Manager View for overseeing multiple asynchronous agents. Antigravity excels with multi-surface integration, allowing agents to control various development environments simultaneously, and utilizes an Artifacts System to enhance trust by generating human-readable plans and checklists. It supports multiple AI models, indicating Google's intent to dominate the platform workflow. Despite its potential, the early version faces stability issues with frequent "model overloaded" errors and critical bugs, challenging developers with a learning curve as they transition from coding to managing. While the developer community praises its speed and innovation, skepticism remains about its stability and functionality, yet it offers a compelling glimpse into the future of agentic coding.