GitHub 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.

Product
OpenAI Codex+68.1%363,737501,785282,52912,9209,1341.4β˜…394089.3%β˜…3.2%β˜…54,635β˜…6,5725661,957125,427β˜…67,939β˜…60+3,123βˆ’1,28925.976.5%10h
GitHub Copilot+34.3%2,710,210β˜…3,732,049β˜…310,871β˜…23,482β˜…17,421β˜…1.4β˜…159β˜…156β˜…85.5%0.4%39,3976,699β˜…564β˜…106,103β˜…73,1071,781101β˜…+3,514β˜…βˆ’1,445β˜…28β˜…79.6%β˜…3dβ˜…

Click any column header to sort. β˜… marks the highest number in each column. Higher doesn't necessarily mean better. Methodology.