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Issue 001 / A living technical almanac

Rankings never sold

Coding Agents · Head-to-head

Claude Code vs gemini-cli

Claude Code and gemini-cli are both coding agents. Claude Code is Anthropic's agentic coding tool that works in your terminal, IDE, and CI, while gemini-cli is an open-source AI agent that brings the power of Gemini directly into your terminal. Here's an independent, side-by-side look at how they compare — and which fits.

Claude Code

Agent· Paid product

Anthropic's agentic coding tool that works in your terminal, IDE, and CI.

Visit Claude Code
gemini-cli

Agent· Open source

An open-source AI agent that brings the power of Gemini directly into your terminal.

Visit gemini-cli

Bottom line

Claude Code and gemini-cli take different routes to the same job: one is a commercial product, the other open-source and self-hostable. Choose based on whether you want a managed experience or full control.

Side by side

SpecClaude Codegemini-cli
TypeAgentAgent
ModelCommercialOpen source
PricingPaid productOpen source
GitHub stars105,872
LanguageTypeScript
LicenseApache-2.0
Last activityJul 2026

Key differences

  • Claude Code is a commercial product; gemini-cli is open-source and self-hostable.
  • Pricing model differs — Claude Code is paid product, gemini-cli is open source.

Choose Claude Code if

Developers who want an agentic coding tool in the terminal, IDE, and CI that works against existing repositories..

Choose gemini-cli if

you want an open-source, self-hostable option you control.

About Claude Code

Anthropic's agentic coding tool that works in your terminal, IDE, and CI.

Full Claude Code profile →

About gemini-cli

An open-source AI agent that brings the power of Gemini directly into your terminal.

Full gemini-cli profile →

Frequently asked

What's the main difference between Claude Code and gemini-cli?
Claude Code is a commercial product; gemini-cli is open-source and self-hostable.
Is Claude Code or gemini-cli better?
Neither is universally better. Claude Code is the stronger fit for Developers who want an agentic coding tool in the terminal, IDE, and CI that works against existing repositories; gemini-cli for an open-source, self-hostable option you control. Use the side-by-side specs to decide by your own constraints.
Is Claude Code or gemini-cli free?
Claude Code is a paid product; gemini-cli is free to run and self-host.
Which is more popular, Claude Code or gemini-cli?
We rank open-source projects by GitHub adoption, but at least one of these is a commercial product and stars don't measure commercial adoption — so compare them on capabilities and pricing instead.
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