AfterQuery2026-09-02 23:16:04AfterQuery Hits $3.2 Billion Valuation, Becoming Y Combinator’s Fastest UnicornAfterQuery, an AI training data startup founded just 18 months ago, has reached a $3.2 billion valuation in a new funding round, according to Forbes. The jump comes only five months after the company closed a $30 million Series A at a $300 million valuation, marking a more than tenfold increase in a short span. Y Combinator partner Gustaf Alströmer said the rise makes AfterQuery the fastest company in YC history to go from inception to unicorn status. Founded in February 2025 by high school friends Spencer Mateega and Carlos Georgescu, AfterQuery originally set out to build AI agents for finance before shifting its focus to training data. The company now pays specialists to create detailed reasoning records that show how professionals work through complex decisions. Forbes reported that Nvidia has used the data to train its open-source Nemotron models, while Thinking Machines Lab and legal AI company Legora are also among its clients. The report places AfterQuery inside a wider scramble for expert-generated data as frontier AI labs run low on usable open-web text and synthetic data reaches its limits. Forbes also said the company is already profitable, though the funding round has not yet closed and its lead investor has not been named.30
AI2026-09-01 22:10:52AI Startup AfterQuery Hits $3.2B Valuation, Becomes Y Combinator's Fastest UnicornAccording to TechCrunch, AI model training startup AfterQuery has completed a new funding round at a $3.2 billion valuation. The company previously raised a $30 million Series A at a $300 million valuation in April, meaning its valuation grew over 10x in just five months. This milestone makes AfterQuery the fastest company to reach unicorn status in Y Combinator's history. The startup focuses on AI model training, and the rapid growth reflects strong investor interest in the sector. The specific investors in the latest round have not been disclosed.330
