Gemini CLI vs Google Antigravity

Gemini CLI's cheapest paid plan is $22.8/mo, or $19/mo billed annually, while Google Antigravity's is $19.99/mo. Gemini CLI publishes a clear entry allowance of 1,500 model requests per user per day, which Google Antigravity does not. Both offer checkpoints for an easy undo. The free plan and setup tip the balance. Google Antigravity's free plan includes agent model access to Gemini 3.8 Flash, while Gemini CLI's Google-login free tier ended on 2026-06-18. Google Antigravity also runs as a desktop app and IDE, a gentler start than a CLI and GitHub Action.

For a security review, the training policy matters most. Gemini CLI publishes a specific customer-code policy for Code Assist Standard and Enterprise, while Google Antigravity's published policy covers only its Individual tier, governed by Google Terms of Service. Neither offers a self-hostedself-host - Run the software on your own servers instead of the vendor’s cloud. or VPC deployment, and neither publishes a zero data retention option or SOC 2. Both rely on Google identity: Gemini CLI uses Google Workspace or Google Cloud identity for Code Assist, and Google Antigravity offers Enterprise SSO via Google Cloud. Google Antigravity does publish admin audit logs, which Gemini CLI does not, but the business-tier code policy counts for more.

This one is decided by what the free plan actually allows. Google Antigravity's free plan includes agent model access to Gemini 3.8 Flash, while Gemini CLI's Google-login free tier ended on 2026-06-18. Gemini CLI fully supports bringing your own API key, whereas Google Antigravity only partially does, through its CLI on your own Gemini API key. When you upgrade, Gemini CLI's cheapest paid plan is $22.8/mo, while Google Antigravity's is $19.99/mo, and Google Antigravity also runs local models.

The deciding factor is running models on your own machine, and only Google Antigravity publishes local model support. Gemini CLI does not, and it lists its supported providers as Google only, through Gemini Code Assist. Gemini CLI has the stronger license story as Apache-2.0, while Google Antigravity does not publish a license, and Gemini CLI fully supports bringing your own API key where Google Antigravity only partially does. Those strengths matter less than whether the agent can run locally at all.

For teams that want to read, fork or self-hostself-host - Run the software on your own servers instead of the vendor’s cloud. the agent, the license matters most, and Gemini CLI is Apache-2.0 while Google Antigravity does not publish a license. Gemini CLI also shows 107,200 GitHub stars and offers a hosted option through Gemini Code Assist Standard at $19 to $22.80/user/mo. Its provider list is narrow, Google only, and Google Antigravity publishes local model support that Gemini CLI does not. Even so, without a published license, Google Antigravity is not an option for this use case.

Where the agent runs matters most here. Gemini CLI is a CLI with a GitHub Action, so it fits the shell and CI directly, while Google Antigravity leads with a desktop agent manager app and an IDE across ten surfaces. Both run terminal commands, support MCP and read rules files, with Gemini CLI using GEMINI.md and Google Antigravity reading AGENTS.md or GEMINI.md. Google Antigravity does offer background agents, which Gemini CLI does not, but its desktop-first design is a less natural fit for a terminal workflow.

Editor support decides this use case. Google Antigravity works with Visual Studio Code, Visual Studio, JetBrains, Zed and Xcode, while Gemini CLI does not publish editor support and runs as a CLI and GitHub Action. Both make autonomous multi-file edits and offer checkpoints for rollback. Google Antigravity also indexes your codebase, a vendor-stated feature Gemini CLI does not publish. Gemini CLI does publish 1,500 model requests per user per day at the entry tier, but that cannot make up for the missing editor integration.