AfterQuery reportedly becomes Y Combinator’s fastest-ever unicorn, now valued at $3.2B
AI model-training startup AfterQuery has reportedly raised a round that valued it at $3.2 billion, just five months after announcing its $30 million Series A at a $300 million valuation in April.
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AfterQuery, an AI training-data startup, raised funding that valued it at $3.2 billion, just five months after its Series A valuation of $300 million in April. According to a Y Combinator partner, this makes AfterQuery the fastest startup in the accelerator's history to reach unicorn status, having attended Y Combinator's Winter 2025 cohort only 18 months prior. AfterQuery employs knowledge professionals like doctors and lawyers to train AI models and agents on how to complete tasks like specialists would, rather than simply answering questions accurately. The company has named Nvidia, Legora, and Motif Technologies as customers and reported an annualized revenue run rate of $100 million in April.
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