Antigravity CLI is Google's current terminal-agent path for individual Gemini coding workflows. Google announced that Gemini CLI stopped serving free, Google AI Pro, and Ultra individual requests on June 18, 2026, with those users moving to Antigravity CLI.
Key capabilities
Gemini CLI migration - The onboarding flow supports migration from Gemini CLI, making this the first Google agent to evaluate when a user asks for current Gemini terminal guidance.
Agent workflows - Antigravity is positioned around more complex coding-agent workflows than the original Gemini CLI path.
Extensions and plugins - Migration material points from Gemini CLI extensions toward Antigravity plugin concepts. Exact feature parity should be verified before relying on a specific extension.
Autonomy level
Level 4 pending empirical verification: Google positions Antigravity around more capable agent workflows, but DevThrottle should measure permissions, terminal mode, and structured history before making stronger claims.
Strengths
- Current Google CLI path after the Gemini CLI transition
- Important migration story for existing Gemini CLI users
- Likely to become the primary Google terminal-agent surface
Limitations
- Feature parity with Gemini CLI should not be assumed
- Closed-source/current behavior needs empirical validation
- Enterprise paths may differ from individual-user guidance