codex vs Pumpkin

codex and Pumpkin share 7 technologies: axum, Tokio, ed25519-dalek, hmac, png, tracing, and tracing-subscriber. Both are written in Rust.

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What they share and what sets them apart

openai

codex

Lightweight coding agent that runs in your terminal

Rust133.9kRead on November 9, 2026, at commit 6107b98What is codex built with?

Only in codex

In common

Pumpkin-MC

Pumpkin

Empowering everyone to host fast and efficient Minecraft servers

Rust12.9kRead on November 10, 2026, at commit b23d048What is Pumpkin built with?

Only in Pumpkin

Side by side

SizeLines written by people and agents, without generated ones; code files, without tests.
codex2,374,591 lines written4,286 code files
Pumpkin641,187 lines written2,803 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.
codex2.7% of its commits signed by AIWith Codex, Claude Code, and GitHub Copilot
Pumpkin0.4% of its commits signed by AIWith Claude Code, CodeRabbit, and GitHub Copilot
ActivityFrom GitHub and its history, on the day SeeRepo read it.
codexLast push November 9, 202613,317 commits133,900 stars
PumpkinLast push November 10, 20263,087 commits12,913 stars
TestsThe files that test the code, and the share of code files a test imports.
codex2,509 test files51.9% of its code files have a test that imports them
Pumpkin29 test files3.6% of its code files have a test that imports them

Frequently asked questions

Which is bigger, codex or Pumpkin?
codex, with 2,374,591 lines written; Pumpkin has 641,187.

The proof: openai/codex's code at commit 6107b98

Which has more GitHub stars, codex or Pumpkin?
codex, with 133,900 stars; Pumpkin has 12,913.

The proof: openai/codex on GitHub

Which has more tests, codex or Pumpkin?
codex, with 2,509 test files; Pumpkin has 29.

The proof: openai/codex's code at commit 6107b98

Which was updated more recently, codex or Pumpkin?
Pumpkin: its last push was on November 10, 2026, and codex's on November 9, 2026.

The proof: Pumpkin-MC/Pumpkin's commits on GitHub

Which has more commits signed by AI, codex or Pumpkin?
codex: an AI signed 2.7% of its commits, with Codex, Claude Code, and GitHub Copilot; in Pumpkin, 0.4%.

The proof: the commits each tool signed in openai/codex

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