Anthropic Revenue Soars 12-Fold to $17 Billion as Rush for Compute Erases Its Operating Profit

Anthropic told investors on Monday, Nov. 2, that its revenue reached $16.96 billion in the third quarter, about 12 times the year-earlier figure, as it updated its Anthropic IPO filing with the Securities and Exchange Commission. The same amended prospectus shows the San Francisco-based Claude maker slipped to a $567 million operating loss.

The deal size, dates and stakes are still taking shape. The amended S-1 leaves the price range and share count blank. Reuters reported that marketing to investors is expected to start the week of Nov. 9, and The Decoder, citing the New York Times, said the offering could raise around $100 billion, which would make it one of the largest listings ever.

Anthropic IPO filing: revenue soars, profit slips

Revenue for the three months ended Sept. 30 was $16.96 billion, up from $11.56 billion in the second quarter and $1.38 billion in the third quarter of 2025, according to the amended filing as reported by WebProNews and Reuters. Figures shared with prospective investors in mid-October had put the quarter at $16.8 billion.

The operating line moved the other way. Anthropic posted a $567 million operating loss after $974 million of operating income in the June quarter, the only quarter with operating income in the filing’s quarterly table. Total operating expenses reached $17.5 billion, up 292% from a year earlier.

The company tied most of that swing to two items: $5.0 billion of short-term compute, which costs more than capacity bought under long-term contracts, and $2.0 billion of non-cash charges from its employee donation matching program. The filing warns the pressure will continue: “We expect our use of short-term compute to continue to increase in the near term and to in turn compress our operating margin and Adjusted Operating Margin as a result.”

By the numbers: what the S-1 amendment shows

By The Boston Report’s calculation, revenue rose $5.40 billion, or 46.7%, from the second quarter to the third. Compared with a year earlier, it grew by $15.58 billion, roughly 12.3 times the $1.38 billion Anthropic booked in the third quarter of 2025.

The swing from a $974 million operating profit to a $567 million operating loss amounts to $1.54 billion in one quarter, by TBR’s math. Compute and infrastructure expenses reached $9.86 billion, or 58% of revenue, up from 48% in the second quarter, according to the filing.

The headline net loss looks far worse than the business result. Anthropic lost $23.3 billion in the quarter, but $21.9 billion of that came from marking convertible notes and similar instruments to a higher company valuation. By TBR’s calculation, that non-operating charge accounts for about 94% of the net loss. The adjusted figure, a non-GAAP measure, rose to $2.5 billion of operating income from $2.2 billion, though the adjusted margin slipped to 15% from 19%.

The customer base broadened too. About 79% of third-quarter revenue came from customers outside the five largest, up from roughly 64% in the first quarter. Reuters reported that more than 11,900 customers now generate over $100,000 in trailing revenue, up from more than 1,500 at the end of 2025, about an eightfold increase by TBR’s math.

An $895 billion bill for compute

The largest number in the amendment sits in the commitments section, which the first filing left blank. Anthropic has signed purchase and lease agreements worth about $895.4 billion, substantially all of it for compute and infrastructure. About $69.8 billion falls due within 12 months of Sept. 30, and roughly $447.5 billion comes due before the end of 2030.

By TBR’s calculation, the total commitment equals about 53 times the latest quarter’s revenue. The 12-month portion is roughly the same as the company’s current quarterly revenue pace multiplied by four, which means the next year of contracted spending alone would absorb about a full year of sales at today’s rate. Anthropic ended September with $146.6 billion of liquidity, including $95.6 billion in cash and $36.3 billion in short-term investments, about 2.1 times what comes due in the next 12 months.

The company says it usually contracts compute 12 to 18 months before the capacity arrives, so demand that outruns that pipeline has to be met with pricier short-term deals. Its Anthropic Direct program, which leases chips and hosts them in dedicated facilities, is meant to replace that capacity with cheaper long-term compute. The data-center push already reaches well beyond the cloud giants: Nvidia has weighed guaranteeing debt for an Nscale data center built for Anthropic.

What it means for investors and the AI race

The filing arrives as investors reprice the whole sector. Reuters reported that some investors now value Anthropic at about $1.5 trillion, down from about $2 trillion earlier. Rival OpenAI recently cut its funding round target to $20 billion, and the market punished Reddit’s stock by 29% in a single day over AI’s effect on search traffic.

Price cuts are another pressure point. The amendment says price reductions on new model versions and contractual discounts offset about $600 million of usage-driven revenue gains between the second and third quarters. Sales through cloud provider marketplaces made up 44% of nine-month revenue, and the five largest customers still accounted for about 25% of revenue over that period.

Several key lines remain blank, including run-rate revenue as of Oct. 31. Those numbers, along with the price range, are expected in a later amendment before the roadshow. For broader market coverage, see The Boston Report’s business news section.

Sources

• Reuters via Investing.com: Anthropic’s quarterly loss shrinks, revenue jumps ahead of blockbuster IPO (Nov. 2, 2026)
• WebProNews: Anthropic brought in nearly $17 billion last quarter and slipped back to an operating loss (Nov. 2, 2026)
• The Decoder: Anthropic grows revenue twelvefold but posts $23 billion loss (Nov. 2, 2026)
• Anadolu Agency: Anthropic’s quarterly revenue surges 12-fold to nearly $17B ahead of IPO