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Who Writes Open Source? What the Commit Addresses of 107 Projects Say

Who Writes Open Source? What the Commit Addresses of 107 Projects Say

·657 words·4 mins
Counting 446,000 commits made to 107 large open-source projects in the last year by the domain of the author’s email: 29% came from organization addresses, but the median project is at 16%. Company projects and community projects differ widely; Google committed to 40 of them in a year, and a fifth of all commits don’t say where they come from.
Open-Source AI Attribution Index, 2026 Q3: Only 13.2% of Commits Disclose AI, and That Is Too Low

Open-Source AI Attribution Index, 2026 Q3: Only 13.2% of Commits Disclose AI, and That Is Too Low

·2525 words·12 mins
Almost every developer I know writes code with AI, yet in 20 large open-source projects only 13.2% of 2026 Q3 commits disclose it, and Rust, Kubernetes and Django are near zero. Many people use AI and don’t say so. My view: maintainers shouldn’t ask whether AI wrote a change, but whether the contributor can stand behind it. Disclosing is still the better habit.