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gemini-cli vs codex-security

gemini-cli and codex-security share 5 technologies: React, MCP, Zod, ink, and Ajv. Both are written in TypeScript.

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What they share and what sets them apart

google-gemini

gemini-cli

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

TypeScript108.8kRead on November 12, 2026, at commit aeb6c04What is gemini-cli built with?

Only in gemini-cli

In common

openai

codex-security

OpenAI's Codex Security CLI and TypeScript SDK for finding, validating, and fixing security vulnerabilities. npm: https://www.npmjs.com/package/@openai/codex-security

TypeScript11.9kRead on November 12, 2026, at commit 2911786What is codex-security built with?

Only in codex-security

Side by side

SizeLines written by people and agents, without generated ones; code files, without tests.
gemini-cli751,495 lines written1,079 code files
codex-security568,957 lines written393 code files
Who writes itA commit counts as AI's when it carries its signature: a Co-Authored-By line, its author name or the merge of its branch.
gemini-cli8.2% of its commits signed by AIWith Gemini CLI, Jules, and GitHub Copilot
codex-security2.1% of its commits signed by AIWith Codex, Claude Code, Cursor, and GitHub Copilot
ActivityFrom GitHub and its history, on the day SeeRepo read it.
gemini-cliLast push November 12, 20266,614 commits108,785 stars
codex-securityLast push November 12, 20262,044 commits11,854 stars
TestsThe files that test the code, and the share of code files a test imports.
gemini-cli1,063 test files85.8% of its code files have a test that imports them
codex-security611 test files71% of its code files have a test that imports them

Frequently asked questions

Which is bigger, gemini-cli or codex-security?
gemini-cli, with 751,495 lines written; codex-security has 568,957.

The proof: google-gemini/gemini-cli's code at commit aeb6c04

Which has more GitHub stars, gemini-cli or codex-security?
gemini-cli, with 108,785 stars; codex-security has 11,854.

The proof: google-gemini/gemini-cli on GitHub

Which has more tests, gemini-cli or codex-security?
gemini-cli, with 1,063 test files; codex-security has 611.

The proof: google-gemini/gemini-cli's code at commit aeb6c04

Which was updated more recently, gemini-cli or codex-security?
Both got their last push on November 12, 2026.

The proof: openai/codex-security's commits on GitHub

Which has more commits signed by AI, gemini-cli or codex-security?
gemini-cli: an AI signed 8.2% of its commits, with Gemini CLI, Jules, and GitHub Copilot; in codex-security, 2.1%.

The proof: the commits each tool signed in google-gemini/gemini-cli

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