Anthropic's compute costs reach 58 percent of revenue in updated IPO filing
Anthropic reported $16.96 billion of September-quarter revenue against $9.86 billion of compute costs, while AMD posted a record quarter and CrowdStrike agreed to buy two AI security companies.

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Anthropic’s compute bill grew faster than its revenue in the September quarter. An amendment to its IPO prospectus, filed on 2 November, reported revenue of $16.96 billion, up from $11.56 billion three months earlier. Compute and infrastructure costs reached $9.86 billion, or 58 percent of revenue, from 48 percent in the June quarter.
The company posted an operating loss of $567 million, after $974 million of operating income in the previous quarter. It said $5.0 billion of the quarter's compute was bought under short-term commitments. That capacity "currently costs significantly more than comparable compute procured under our multi-year commitments." Anthropic, which typically buys capacity 12 to 18 months before it is available, told investors that compute will remain its largest operating expense for the foreseeable future. The filing also shows the customer base widening. Accounts generating $100,000 or more of revenue over the prior year grew from about 400 in March 2025 to more than 11,900 at the end of September.
Featured source: Anthropic’s amended S-1 , TechCrunch .
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Filed from: AMD results , The Verge .
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Filed from: Kaspersky Securelist , Ars Technica .
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