Antigravity CLI
Google's keyboard-first terminal agent, run as agy, and since June 18, 2026 the place free individual and Google AI Pro and Ultra users go after leaving Gemini CLI. It brings the core of the Antigravity 2.0 desktop app to the terminal on the same shared agent engine, which Google describes as co-trained with Gemini models, so settings and permissions sync between the two and a terminal session can be exported into the app. Work can be delegated to background subagents in isolated git worktrees, output is reviewed through artifacts such as implementation plans, multi-file diffs, and browser recordings, and tool approval gates and workspace scoping bound what the agent can touch. It runs in local shells, remote cloud environments, and SSH sessions, where it prints a login URL instead of opening a browser. Unlike Gemini CLI it is not open source: the public GitHub repository holds the README, changelog, and examples, and the agent installs as a native binary. By default Google collects interaction data to improve the product, with an opt-out in settings. As of October 28, 2026, neither Terminal-Bench board had published a run for it.
Leaderboard Placements
Live board as of 2026-10-28: federated Terminal-Bench rows, with TensorFeed editorial scores for harnesses the board does not cover.
| Benchmark | Best base model | Score | Rank |
|---|---|---|---|
| SWE-bench Verified | - | - | - |
| Terminal-Bench | - | - | - |
| Terminal-Bench 2.1 | - | - | - |
| Terminal-Bench 3.0 | - | - | - |
| Terminal-Bench 4.0 | - | - | - |
| Aider Polyglot | - | - | - |
| SWE-Lancer | - | - | - |
Distribution
Native binary for macOS, Linux, and Windows, installed with curl -fsSL https://antigravity.google/cli/install.sh | bash or the PowerShell and CMD installers. Signs in through the system keyring or Google Sign-In.
Model Story
Gemini models on every plan, with Gemini 3.8 Flash as the baseline agent model and Gemini 4 Argon in the selector. The selector also lists Claude Sonnet 5.5, Claude Opus 5.5, and GPT-OSS 120B, and Google lists third-party model access as a Google AI Ultra benefit. No bring-your-own-key or custom endpoints.
Pricing
Free to use with a weekly quota and a weekly rate limit. Google AI Pro and Ultra raise the quota, refreshed every five hours up to a weekly cap, and can spend purchased AI credits on overage. Teams use it under Google Cloud terms through Gemini Enterprise.
Who It's For
Individual developers who used Gemini CLI on a free or Google AI plan, and anyone who wants the Antigravity agent in a terminal or over SSH alongside the desktop app.
Notable Features
- Shared agent engine and synced settings with the Antigravity 2.0 app
- Background subagents in isolated git worktrees
- Implementation plans, multi-file diffs, and browser recordings as reviewable artifacts
- Skill, MCP server, and extension bundles for Firebase, Android, Google Cloud, and more
- SSH-aware sign-in that prints an authorization URL