Adoption is broad. Many contributors are committing agent-authored work, which is what a real organisational rollout looks like.
Assisted or autonomous
Assisted — a developer’s identity authored the commit and the agent added itself as co-author. The agent ran git commit during a working session, with a person there. Autonomous — a bot identity is the author, no human in the loop. Across the whole index, 93.7% of agent commits are assisted.
Agent share by month
Peak month: 30.1%. Bars are scaled to that peak, not to 100%.
Which agents
| Claude Code | Anthropic | 280 | 16.6% |
| Cursor Agent | Anysphere | 6 | 0.4% |
| GitHub Copilot | GitHub | 1 | 0.1% |
Verify it yourself
Sample commits that matched. Every one links to GitHub — check the trailers.
a6e191fdMemory and perf fix for Tanh-Sq-Relu and FP32 logits output (#7229)Claude Code0e48cdf3fix(determinism): Separate the MoE aux-loss fusion flag so --deterministicClaude Code904ad475Add DeepSeek-V3 NVFP4 training support (#6841)Claude Code07a0de65fix(moe): free activations immediately in full recompute mode (#5197)Cursor Agentf744215aAdd bump-base-image skill and update golden value comparison (#4733)Cursor Agentfca1679eMXFP8 refit (#3742)Cursor Agent9ed8b0c4Fix incorrect HAVE_TE detection in multiple modules (#3763)GitHub Copilot
What was excluded
| Commits in window | 1,791 |
| Merge commits removed | −0 |
| CI / dependency bots removed | −108 |
| Considered | 1,683 |
Bots are excluded from the denominator entirely. Counting dependabot as “AI-written code” is the fastest way to produce a meaningless number.
How this was measured
Measured over February–August 2026, cloned directly. Detection is deterministic string matching against signatures agents write about themselves — no heuristics, no style analysis. Merge commits and CI bots are excluded from the denominator. The figure is a floor: squash merges strip trailers, so real usage is higher. Contributor counts are aggregate — no individual is named.
Run it yourself: npx qmmit-cli NVIDIA/Megatron-LM