candle vs codex
candle and codex share 5 technologies: objc2-foundation, Tokio, image, zip, and tracing. Both are written in Rust.
LinkedInWhat they share and what sets them apart
huggingface
candle
Minimalist ML framework for Rust
Rust21.3kRead on November 5, 2026, at commit cfcbd71What is candle built with?Only in candle
objc2-metal
- candle-nn
- candle-onnx
- candle-transformers
safetensors
- hf-hub
tokenizers
parquet
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
candlecodex
SizeLines written by people and agents, without generated ones; code files, without tests.
candle232,128 lines written398 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.
candle0.1% of its commits signed by AIWith Claude Code
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.
candleLast push November 2, 20262,572 commits21,277 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.
candle54 test files9.8% 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, candle or codex?
codex, with 2,320,674 lines written; candle has 232,128.
The proof: openai/codex's code at commit 021fccb
Which has more GitHub stars, candle or codex?
codex, with 133,103 stars; candle has 21,277.
The proof: openai/codex on GitHub
Which has more tests, candle or codex?
codex, with 2,448 test files; candle has 54.
The proof: openai/codex's code at commit 021fccb
Which was updated more recently, candle or codex?
codex: its last push was on November 4, 2026, and candle's on November 2, 2026.
The proof: openai/codex's commits on GitHub
Which has more commits signed by AI, candle or codex?
codex: an AI signed 2.8% of its commits, with Codex, Claude Code, and GitHub Copilot; in candle, 0.1%.
The proof: the commits each tool signed in openai/codex
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