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Forbes puts the 18-month-old training-data startup at $3.2bn against the $300m it carried five months ago. Most of that move is multiple rather than growth, and the round has not yet closed or named a lead.
The Investor · Invest desk

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The 10.7x is the easy number [18]; the split inside it is the informative one. The Series A's $300m against the $100m run rate Mateega cited in April works out to 3x [2][7][20]. The new round sets $3.2bn against a run rate the founder now places in the hundreds of millions, which taken at $200m to $300m is 10.7x to 16x [1][21]. So the price of a dollar of AfterQuery revenue rose somewhere between 3.6 and 5.3 times while the revenue itself doubled or tripled [22][26]. Most of the move is the market's view of the category rather than the company's execution, though the execution is what makes the view credible.
What the category sells is a payroll. AfterQuery pays doctors, lawyers, engineers and financial analysts to write out, step by step, how they reason through a hard professional call [10], because the labs have already picked over the usable text on the open web and synthetic material carries them only so far [11]. That is a cost of goods with a billing rate attached, valued here on software comparables. One of Forbes' sources says the company is already profitable [5], and that single unverified word is doing more work inside the $3.2bn than the growth rate is.
The comparables are moving too. Meta paid $14.3bn for 49% of Scale AI [16], which marks the whole of it near $29.2bn [23], and Mercor, at $10bn last October, is talking with Nvidia about $20bn [15], or 6.25 times AfterQuery's number [24], leaving AfterQuery at roughly 11% of Scale's implied whole [25]. Nvidia sits on both sides of that, consuming AfterQuery's output for its open-source Nemotron models [12] while negotiating the competitor's equity. Customers who fund their suppliers get good prices on the supply, right up to the point they decide to make it in-house.
This is probably wrong, but the scarcity being priced is real and dated. Maybe the labs just keep buying judgment, and 16x looks cheap in a year. Maybe they internalise expert networks instead, having learned from these invoices exactly what to pay for. Or maybe reinforcement-learning environments and generated data close enough of the gap that paid specialist hours become a premium tier rather than the input. Note what AfterQuery gave up to get here, since it wanted to build finance agents and stopped [13], so the money and the founders' attention now go into screening submissions for the right difficulty and pre-training on the data to prove it moves a model [14]. (The source has them founding in February 2025 and also founding 18 months after joining the Winter 2025 batch [8][9], which cannot both be true, so read the fastest-ever record as a claim rather than a measurement.) If a Nemotron-class model trains as well on generated environments as on credentialed hours, the 16x is a staffing multiple, and the arithmetic runs backwards from there.
Ranked by verification strength, evidence, and original report placement.
Five months earlier AfterQuery closed a $30 million Series A at a $300 million valuation.
Y Combinator partner Gustaf Alstromer called AfterQuery the fastest startup in the accelerator's history to go from inception to unicorn status, meaning a private company worth over $1 billion.
AfterQuery's round has yet to close, and the company has not named its lead investor.
AfterQuery pays doctors, lawyers, engineers and financial analysts to produce reasoning data: written, step-by-step records of how a professional works through a problem.
Nvidia has used AfterQuery's data to train its open-source Nemotron models, and AfterQuery also counts Thinking Machines Lab and legal AI firm Legora as clients, per Forbes.
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1 article · September 2, 2026
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Evidence-backed comparisons of source perspectives and observed adoption signals. Read the methodology
Which Builder, Operator, and Investor concerns the observed source mix emphasized—not a truth score.
Evidence, demonstrated adoption, hype gap, incentives, and confidence are assessed independently, each on its own current evidence. How these are measured.
Anonymous, secondhand, unclosed
The number in the headline reaches the reader through three hands: two people with direct knowledge, then Forbes, then Decrypt. The company that would know declined to comment, the round has not closed, and the only revenue figure with a name on it is a founder's July post saying 'hundreds of millions'. What is solidly documented here is the business model and the customer names — not the price.
Named users, unnamed amounts
Three real buyers are on the page and one of them, Nvidia, shipped open-source Nemotron models trained on this data — that is more than most companies at this valuation can show. But not a dollar, a task count, or a renewal date accompanies any of them, and all three names arrive via Forbes rather than from the customers. Toss and Poseidon show the demand is broad enough that others are attacking it from the consumer side.
Price ran ahead of the business
The business is real and the demand behind it is real; the framing is what overshoots. 'Fastest-ever unicorn' does the work of explaining a 10.7x price move that revenue growth of two to three times cannot, and the superlative comes from a partner at the accelerator holding the stock. A round that has not closed and has no named lead is being reported as an accomplished valuation.
Everyone speaking is long
Follow who benefits from this number circulating. People with direct knowledge of an unclosed round leak its price while a lead investor is still being courted; a Y Combinator partner supplies the superlative for a company his firm backed; the founder posts revenue growth in the vaguest usable unit. Even the comparison set is entangled — Nvidia is described as both a customer of this data and the party in talks to price Mercor at $20bn.
One outlet, one remove
Our read of the arithmetic is firm — the multiple did expand three to five times, whatever the exact run rate. Our read of the inputs is not, because there is a single publisher here retelling another outlet's scoop, and no second account to catch an error. If the round closes with a named lead and a confirmed price, most of this uncertainty resolves in a day.