Google Kills Gemini CLI: Forced Migration to Antigravity CLI by June 18 Deadline

Google Developers Blog·high signal

Google is deprecating Gemini CLI and Gemini Code Assist IDE extensions for free and Pro/Ultra users on June 18, 2026, folding terminal-based AI coding into the broader Antigravity agent-first platform. Skills, hooks, subagents, and extensions carry over as Antigravity plugins. Enterprise customers with paid Gemini Code Assist Standard/Enterprise licenses retain access. The move consolidates Google's agentic developer tools into a single multi-agent backend.