Razib Khan's Unsupervised Learning

Letter Ranks estimates Razib Khan's Unsupervised Learning at $1,209.6 per month in earning potential, based on its 54,000 subscribers, category benchmarks for tech and typical sponsorship and paid-subscription rates. That places it #771 of 3,012 newsletters on the leaderboard.

Razib Khan's Unsupervised Learning has about 54,000 subscribers on Substack, which ranks #127 of 329 tech newsletters tracked here. Subscriber counts come from public data or the owner's submission and are updated when the newsletter is claimed.

The estimate combines subscriber count, paid subscriber share and price where known, open rate, and category-level sponsorship benchmarks (CPM and per-send rates). It is an earning-potential estimate, not reported revenue. The full method is on the methodology page.