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Methodology

Every figure on this site is reproducible from a public API call. This page states exactly what was called, what was computed, and what the result cannot tell you.

What this is, and what it is not

A point-in-time comparison of GitHub adoption signals across a fixed set of AI coding tools, read the same way on the same day. It is not a measure of quality, usage, revenue or developer satisfaction, and nothing here should be read as a recommendation.

Collection

A failed repository read is recorded as a gap and produces no row. It is never written as zero and never interpolated, because a missing measurement and a measurement of nothing are different facts.

Periods

A period is a calendar month. Each harvest writes its own timestamped snapshot, so a period can hold many readings.

The figure published for a period is its last reading. While the period is the newest one it is open: it gains readings and its figure can change. Once a later period exists it is closed and never changes again. Every provenance page states which of the two it is, so a figure can be trusted to stay put only when it says it will.

Derived figures

Two of the five figures are computed, not read. Both are reproducible from the other columns in the same export, so they can be checked rather than believed:

The five metrics

MetricSource field
GitHub Starsstargazers_count
GitHub Forksforks_count
Open Issuesopen_issues_count
Stars Per Dayderived from stargazers_count and created_at
Fork-to-Star Ratioderived from forks_count and stargazers_count

Known gaps in the current period

These repositories were requested and did not resolve. They have no row in this period:

Limitations

Corrections

If a reading is wrong, a later harvest corrects the open period, and the provenance page carries the new value with its reading time. A closed period is never rewritten: a number that has been cited must keep meaning what it meant. If a correction is material, it is noted in the repository's commit history, which is public.

How to cite

Dataindex, “Methodology”, https://opensourcestats.com/methodology/ (read 2026-10-24).

For a specific figure, cite its provenance page rather than this one — it carries the value, the source field and the exact reading date.