ChainCatcher report: According to market sources, AI training data startup AfterQuery has completed a new funding round with a valuation of $3.2 billion—just five months after raising $30 million in its Series A round at a $300 million valuation in April, representing more than a 10-fold increase in valuation. According to Gustaf Alströmer, partner at Y Combinator, this is the fastest journey from founding to unicorn status in YC’s history. AfterQuery’s founders are only 22 and 23 years old and joined Y Combinator’s Winter 2025 batch just 18 months ago. The company announced in April that its annualized revenue had reached $100 million, with clients including NVIDIA, Legora, and South Korea’s AI lab Motif Technologies. AfterQuery focuses on training models and agents to perform tasks like professionals, rather than merely ensuring accurate answers.
AI training data firm AfterQuery reaches $3.2B valuation in new funding round
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Summary
AI training data firm AfterQuery reached a $3.2 billion valuation in a new funding round, just five months after raising $30 million in project funding in April 2026. The startup, co-founded by two young entrepreneurs from Y Combinator’s 2025 cohort, reported $100 million in annualized revenue. Clients include NVIDIA and Motif Technologies. AfterQuery specializes in training models to perform like professionals, not just to ensure accuracy. The rapid growth mirrors the rising momentum of AI and crypto trends in the sector.
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