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AfterQuery reportedly becomes Y Combinator’s fastest-ever unicorn, now valued at $3.2B

AI training-data startup AfterQuery has raised a round valuing it at $3.2 billion, just five months after its $300 million Series A valuation in April.

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Inewgen
02 Sep 2026Source: TechCrunch2 min read (0 views)
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AfterQuery reportedly becomes Y Combinator’s fastest-ever unicorn, now valued at $3.2B

Stock photo for illustration only, not from the actual event

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  • AfterQuery is reportedly Y Combinator's fastest-ever unicorn startup
  • Company valuation surged to $3.2 billion from $300 million in April
  • The startup employs domain experts like doctors and lawyers to train AI models

AI training-data startup AfterQuery has reportedly secured a new funding round that values the company at $3.2 billion. This milestone comes merely five months after the San Francisco-based company announced its $30 million Series A funding at a $300 million valuation back in April. Forbes was the first publication to report on this funding round.

Back in April, the startup disclosed that it had achieved an annualized revenue run rate of $100 million and was actively collaborating with major AI research labs. Among its publicly named customers are prominent industry players such as Nvidia, Legora, and Motif Technologies, an AI lab based in South Korea.

business presentation office meeting room screen

Stock photo for illustration only, not from the actual event

$3.2BCurrent Valuation
5 MonthsTime Since Series A

AfterQuery operates among a new wave of startups following in the footsteps of companies like Mercor and Scale. These firms employ knowledge professionals across various fields, including doctors, lawyers, and other specialists, to assist in model training processes.

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โฆษณา

“encoding the patterns, decisions, and reasoning of the world’s best practitioners.”

AfterQuery

Rather than solely ensuring that AI models answer questions accurately, AfterQuery focuses on training models and agents on how to execute tasks like true professionals. The company describes this innovative approach as encoding the patterns, decisions, and reasoning of the world's top experts.

AfterQuery's record-breaking trajectory highlights the soaring demand for specialized AI training methods that go beyond basic text generation. By capturing human expertise and professional workflows, the startup is capitalizing on the massive push toward advanced AI agents capable of autonomous professional tasks.

Source: TechCrunch

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