Compare
neon vs codex
neon and codex share 9 technologies: axum, tower, Sentry, Tokio, hmac, tracing, tracing-subscriber, tracing-appender, and log. Both are written in Rust.
What they share and what sets them apart
neondatabase
neon
Neon: Serverless Postgres. We separated storage and compute to offer autoscaling, code-like database branching, and scale to zero.
Rust23.3kRead on November 4, 2026, at commit fa50421What is neon built with?openai
codex
Lightweight coding agent that runs in your terminal
Rust133.1kRead on November 4, 2026, at commit 021fccbWhat is codex built with?In common
Only in neon
Only in codex
- lru
- SQLite
objc2-app-kit
- Ratatui
- crossterm
- keyring
- rmcp
- png
- image
- pulldown-cmark
- zip
- schemars
- Pydantic
Side by side
neoncodex
SizeLines written by people and agents, without generated ones; code files, without tests.
neon379,885 lines written659 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.
neon0.1% of its commits signed by AIWith Devin
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.
neonLast push August 31, 20268,459 commits23,296 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.
neon281 test files12.4% 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, neon or codex?
codex, with 2,320,674 lines written; neon has 379,885.
The proof: openai/codex's code at commit 021fccb
Which has more GitHub stars, neon or codex?
codex, with 133,103 stars; neon has 23,296.
The proof: openai/codex on GitHub
Which has more tests, neon or codex?
codex, with 2,448 test files; neon has 281.
The proof: openai/codex's code at commit 021fccb
Which was updated more recently, neon or codex?
codex: its last push was on November 4, 2026, and neon's on August 31, 2026.
The proof: openai/codex's commits on GitHub
Which has more commits signed by AI, neon or codex?
codex: an AI signed 2.8% of its commits, with Codex, Claude Code, and GitHub Copilot; in neon, 0.1%.
The proof: the commits each tool signed in openai/codex
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