openagent @ gemini-cli ~ $

cat README.md

Gemini CLI

Open-source AI agent from Google that brings Gemini models into the terminal with file operations, shell commands, and Google Search grounding.

# 105K Stars · 10.8K Forks · Apache-2.0 License // verified 2026-05-27
gemini-cli/main
$npm install -g @anthropic-ai/gemini-cli
Installing Gemini CLI...
Gemini CLI ready
$gemini-cli --help
Reading gemini-cli configuration & environment...
# core strengths

What makes Gemini CLI different

Google Search grounding

Gemini CLI can ground its responses in live Google Search results, giving it access to up-to-date information beyond its training data.

Most terminal agents are limited to their training data. Search grounding lets Gemini CLI answer questions about recent APIs, library versions, and current best practices.

Fully open source under Apache-2.0

The entire codebase is open for inspection, modification, and redistribution under a permissive license.

Teams can fork, customize, and embed Gemini CLI in their own toolchains without licensing concerns.

Generous free tier

Google offers substantial free Gemini API access, making Gemini CLI one of the most cost-effective terminal agents available.

Developers can experiment with agentic coding workflows without committing to expensive API subscriptions.
# quick start

Your first command

terminal
$npm install -g @anthropic-ai/gemini-cli
# use cases

How developers use Gemini CLI

01

Code exploration and understanding

Use Gemini CLI to navigate unfamiliar codebases, ask questions about architecture, and get explanations grounded in actual source code.

02

Research-backed development

Leverage Google Search grounding to research APIs, compare libraries, and verify best practices before implementing features.

03

Rapid prototyping

Scaffold new projects, generate boilerplate, and iterate on implementations with an agent that can run commands and edit files.

# comparison

How Gemini CLI compares

Choose Gemini CLI for search-grounded agentic coding vs Claude Code

Gemini CLI offers Google Search grounding and a generous free tier. Claude Code may have an edge on complex multi-file reasoning tasks but requires a paid API.

# faq

Questions

Q: What should I check before using Gemini CLI?

Start with one safe workflow for Gemini CLI. Inspect official setup instructions, required credentials, execution logs, approval points, and failure recovery before expanding from a sandbox task into production automation.

Q: Is Gemini CLI open source?

Gemini CLI is listed with Apache-2.0 based on the official source links in this profile. Re-check the repository, model card, or docs before production use.

Q: Who should evaluate Gemini CLI?

Gemini CLI is most worth evaluating for developers who want free or low-cost access to frontier models in a terminal agent.