jcode vs codex
jcode and codex share 8 technologies: SQLite, Tokio, objc2-app-kit, objc2-foundation, Ratatui, crossterm, image, and pulldown-cmark. Both are written in Rust.
LinkedInWhat they share and what sets them apart
1jehuang
jcode
High performance coding agent harness written in Rust, built for heavy multi-agent dev workflows
Rust21.5kRead on November 5, 2026, at commit cedcdeeWhat is jcode built with?Only in jcode
rusqlite
- core-graphics
- global-hotkey
aws-sdk-sts
- azure_identity
tokenizers
pillow
- usvg
- resvg
lettre
- mail-parser
- qrcode
- jsonschema
- azure_core
- Ajv
In common
openai
codex
Lightweight coding agent that runs in your terminal
Rust133.1kRead on November 4, 2026, at commit 021fccbWhat is codex built with?Only in codex
Side by side
jcodecodex
SizeLines written by people and agents, without generated ones; code files, without tests.
jcode1,009,350 lines written1,319 code files
codex2,320,674 lines written4,216 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.
jcode0.2% of its commits signed by AIWith Claude Code and Gemini CLI
codex2.8% of its commits signed by AIWith Codex, Claude Code, and GitHub Copilot
ActivityFrom GitHub and its history, on the day SeeRepo read it.
jcodeLast push November 5, 202611,111 commits21,497 stars
codexLast push November 4, 202613,099 commits133,103 stars
TestsThe files that test the code, and the share of code files a test imports.
jcode766 test files49.1% of its code files have a test that imports them
codex2,448 test files51.6% of its code files have a test that imports them
Frequently asked questions
Which is bigger, jcode or codex?
codex, with 2,320,674 lines written; jcode has 1,009,350.
The proof: openai/codex's code at commit 021fccb
Which has more GitHub stars, jcode or codex?
codex, with 133,103 stars; jcode has 21,497.
The proof: openai/codex on GitHub
Which has more tests, jcode or codex?
codex, with 2,448 test files; jcode has 766.
The proof: openai/codex's code at commit 021fccb
Which was updated more recently, jcode or codex?
jcode: its last push was on November 5, 2026, and codex's on November 4, 2026.
The proof: 1jehuang/jcode's commits on GitHub
Which has more commits signed by AI, jcode or codex?
codex: an AI signed 2.8% of its commits, with Codex, Claude Code, and GitHub Copilot; in jcode, 0.2%.
The proof: the commits each tool signed in openai/codex
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