Gemini CLI is a mostly free, open-source, command-line AI workflow tool that connects to your tools, understands your code, and accelerates your workflows.
Agent Mode combines familiar and novel elements, facilitating three levels of AI collaboration: conversational brainstorming, human-approved code changes, and a near-autonomous coding agent.
Gemini CLI: The Open-Source AI Agent That's Revolutionizing Terminal Workflows - DevOps.com
Traditional AI coding assistants often require switching contexts, opening new applications, or navigating complex interfaces. Gemini CLI eliminates these friction points by bringing Gemini 2.5 Pro directly to developers.