Gemini CLI
#1 in CLI & Terminal Assistantsgoogle · since 2025-06-25 · 128× · last seen Jul 03, 2026
100
Momentum
Gemini CLI is an open-source AI agent by Google that brings Gemini models directly into developers' terminals. Written in TypeScript, the tool uses a ReAct (Reason and Act) loop with built-in tools such as Google Search grounding, file operations, shell commands, and web fetching, plus Model Context Protocol (MCP) support. Launched in June 2025, it was superseded by Antigravity CLI for free and consumer tiers in June 2026, while enterprise customers retain uninterrupted access. The project is Apache 2.0 licensed on GitHub.
Momentum trend
04.04.03.07.
Features
| Base Model | Gemini 3 Flash (default/auto-routing) and Gemini 3 Pro (complex) or Gemini 3.1 Pro (currently available); originally Gemini 2.5 Pro; 1 million token context window |
| License | Apache 2.0 (Open Source) |
| Platform | Cross-platform (Linux, macOS, Windows) via npm/npx; pre-installed in Google Cloud Shell and Google Colab; installation also via Homebrew |
| Release Date | June 25, 2025 (public announcement by Google) |
| Interface (IDE/CLI/Web) | CLI (terminal); also VS Code integration via Gemini Code Assist Agent Mode; pre-installed in Google Cloud Shell and Google Colab |
| SWE-bench Verified (%) | 78% (Gemini 3 Flash, Google self-reported for Gemini CLI agentic coding); Gemini 3 Pro: 76.2% (Google self-reported) |