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Gemini CLI Is History: How Google Antigravity 2.0 Is Reshaping the AI Development Landscape

On June 18, 2026, Gemini CLI officially shut down. In its place, Antigravity 2.0 — a five-layer multi-agent development platform spanning a desktop app, CLI, SDK, managed agents API, and enterprise cloud path — has arrived. A serious challenger to Claude Code has entered the field, and the AI development landscape is fundamentally changing.