TL;DR: With doctors overwhelmed by the medical literature—which doubles in size every 5 years—OpenEvidence built a free AI-powered search engine that monetizes through pharma ads at $70-150 CPM instead of charging hospitals $500/seat like incumbent UpToDate. Sacra estimates OpenEvidence grew to $50M annualized revenue in June 2025, growing 30% MoM from $7.9M in December 2024, securing a $210M Series A from Sequoia at a $3.5B valuation for a 70x revenue multiple. For more, check out our full report and dataset on OpenEvidence...