Who writes it
How much of codex did AI write?
2.8%
AI signed 2.8% of the 13,064 commits of codex. Signed by Codex (351), Claude (10), and GitHub Copilot (3).
Since its first commit, on April 16, 2025. Read on November 3, 2026, at commit f1b0721. Read it as markdown
Who signed the commits
- Codex351 commits · 2.7%
- Claude10 commits · 0.1%
- GitHub Copilot3 commits · 0%
openai/codex13,064 commits
People12,698 commits · 97.2%
Commits per month
Each month's commits up to its last one, with those an AI signed. Merges don't count.
- Signed by AI
- People
The figures, month by month
| Month | Commits | Signed by AI | Share |
|---|---|---|---|
| Nov 2026 | 124 | 0 | 0% |
| Oct 2026 | 1,282 | 0 | 0% |
| Sep 2026 | 1,596 | 0 | 0% |
| Aug 2026 | 1,262 | 0 | 0% |
| Jul 2026 | 879 | 1 | 0.1% |
| Jun 2026 | 930 | 9 | 1% |
| May 2026 | 939 | 70 | 7.5% |
| Apr 2026 | 1,073 | 131 | 12.2% |
| Mar 2026 | 848 | 117 | 13.8% |
| Feb 2026 | 888 | 23 | 2.6% |
| Jan 2026 | 642 | 2 | 0.3% |
| Dec 2025 | 427 | 3 | 0.7% |
| Nov 2025 | 377 | 4 | 1.1% |
| Oct 2025 | 391 | 0 | 0% |
| Sep 2025 | 394 | 3 | 0.8% |
| Aug 2025 | 425 | 0 | 0% |
| Jul 2025 | 129 | 0 | 0% |
| Jun 2025 | 44 | 0 | 0% |
| May 2025 | 155 | 0 | 0% |
| Apr 2025 | 259 | 1 | 0.4% |
How we know
Every AI coding tool leaves its signature in the commits it makes: a Co-Authored-By line, its own author name, or the merge of its branch. SeeRepo reads those signatures in the repo's history; a commit without one counts as made by people, and merges don't count.
Every AI tool SeeRepo recognizes →Frequently asked questions
Which AI tool signed the most commits in codex?
Codex, with 351 of the 13,064 commits of codex.
Since when does AI sign commits in codex?
Since April 2025: the first month an AI tool signed a commit of codex.
How many commits does codex have?
codex has 13,064 commits since April 16, 2025. Merges don’t count.
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