What changed
Google announced on May 19 that Gemini CLI would be folded into Antigravity CLI. On June 18, 2026, Gemini CLI and the Code Assist IDE extensions stopped handling requests from Google AI Pro and Ultra subscribers and free Code Assist for individuals users, and consumer Code Assist for GitHub stopped accepting new installs. Code Assist Standard and Enterprise licences, Code Assist for GitHub through Google Cloud, and paid Gemini API keys keep working. Antigravity CLI, written in Go, brings over skills, hooks, subagents and extensions (renamed plugins), though Google says features don’t match one-for-one.
Who it affects
Free individual users and Google AI Pro/Ultra subscribers who used Gemini CLI or the Code Assist IDE extensions.
What to do
Consumer users should install Antigravity CLI (agy) and follow Google’s migration guide; enterprise and paid-key users can stay on Gemini CLI.
Source: https://developers.googleblog.com/an-important-update-transitioning-gemini-cli-to-antigravity-cli/