Ellipsis
Korbit
LinearB
Code Climate
Qodo
Kilo Review
Qlty
Bito
Codacy
CodeAntGitHub Copilot vs OpenAI Codex
GitHub Copilot is GitHub's native AI assistant spanning code completion, chat, and PR review with zero third-party setup. OpenAI Codex is OpenAI's cloud-based coding agent that reviews PRs asynchronously in a sandboxed environment. Compare their review volume, growth, repos, and community reactions side-by-side.
Trends Over Time#
Compare how products evolve week by week. Pick a metric to explore.
| Product | |||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| OpenAI Codex | -78.3% | 296,238 | 366,067 | 206,304 | 9,893 | 8,282 | 1.2 | 37 | 36 | 88.9%★ | 3.8%★ | 36,893 | 4,615 | 52 | 2,959 | 6,211★ | 1,603★ | 54 | +2,879 | −1,418 | 25.6 | 76.7% | 11h |
| GitHub Copilot | -88.1% | 2,591,095★ | 3,652,458★ | 308,904★ | 23,482★ | 17,421★ | 1.4★ | 156★ | 149★ | 85.4% | 0.4% | 37,836★ | 6,482★ | 561★ | 5,744★ | 3,701 | 124 | 95★ | +3,514★ | −1,473★ | 28.2★ | 80.6%★ | 3d★ |
Click any column header to sort. ★ marks the highest number in each column. Higher doesn't necessarily mean better. Methodology.
Comments per PR#
Average number of review comments each bot leaves per pull request.