The primary system requirement for running Gemini CLI is Node.js version 18 or higher. This requirement ensures compatibility with modern JavaScript features and provides the runtime environment necessary for the CLI to function properly. Node.js 18 includes important security updates, performance improvements, and API enhancements that Gemini CLI relies upon for its core functionality. The tool is designed to work across all major operating systems, making it accessible to developers regardless of their preferred development platform.
Gemini CLI is compatible with Mac, Windows, and Linux systems and works with your terminal of choice. This cross-platform compatibility means you can use the same tool and commands whether you’re working on a MacBook, a Windows development machine, or a Linux server. The CLI doesn’t require any specific IDE or development environment, as it operates directly through the command line interface. The tool provides a rich interface beyond basic command execution, supporting features like file manipulation, command execution, and troubleshooting across all supported platforms.
Beyond the basic Node.js requirement, the system needs sufficient network connectivity to communicate with Google’s AI services, as the Gemini 2.5 Pro model is accessed from the cloud rather than running locally. The tool requires authentication with a Google account, which means your system needs internet access for the initial setup and ongoing API calls. For optimal performance, especially when working with large codebases that utilize Gemini’s 1 million token context window, having adequate RAM and processing power will ensure smooth operation. However, since the heavy computational work is performed in the cloud, the local system requirements remain relatively modest. The tool is designed to be lightweight and portable, fitting naturally into existing development workflows without imposing significant additional resource requirements on your system.