Cursor Hit $1B ARR in 24 Months: The Fastest Scaling SaaS Ever?

Summary

Jason Lemkin highlights Cursor’s unprecedented growth, reaching over $1 B ARR in just 24 months and a $29.3 B valuation after a $2.3 B Series D—making it the fastest‑scaling B2B SaaS ever. The post attributes this speed to a product‑led strategy with zero marketing spend, a 36% conversion rate, and massive capital efficiency, backed by top investors like Accel, NVIDIA, and Google. Lemkin draws broader lessons: AI‑native products must be dramatically better than alternatives, PLG works only at extreme quality, and capital efficiency fuels hyper‑growth, suggesting a new playbook for future decacorns.