Anthropic's IPO Filing Shows $17B Revenue—and Compute Eating 58% of It

Anthropic is finally giving investors a clearer view of the economics behind its rapid growth. In an update to its IPO filing reported by TechCrunch on November 3, the company extended its financial disclosures from June 30 to September 30, adding a full quarter of operating data.

Top-line growth remains steep. Revenue reached $17 billion for the quarter, up from $11.5 billion in the previous one—a pace close to 50% quarter over quarter, which the filing presents as evidence of durable enterprise demand.

The bottom line tells a different story. The operating loss grew alongside revenue, driven largely by compute spending. Compute consumed 58% of revenue in the quarter, up from 48% the quarter before—moving the wrong way at the moment Anthropic most needs to show IPO investors that its unit economics are improving.

The filing points to procurement structure as the culprit. Anthropic's compute bill hit roughly $10 billion for the quarter, including $5.0 billion of capacity bought under short-term commitments, which the document says “currently costs significantly more than comparable compute procured under our multi-year commitments.” Demand simply outran contracted supply.

A chart in the filing makes the squeeze visible: revenue per dollar of compute climbed steadily from the start of 2025, peaked at just over 2x this quarter, then slipped back to 1.72x as expensive stopgap capacity diluted the returns.

Those stopgap deals are large. TechCrunch notes agreements with so-called neoclouds—smaller, more flexible providers that charge higher rates than hyperscalers—including a commitment of $1.25 billion a month for compute alongside multi-billion-dollar deals with several vendors.

Anthropic says it is working to bring costs down through an in-house effort it calls “Anthropic Direct.” But with demand growing at this pace, owned capacity cannot keep up, and the filing states that compute and infrastructure expenses will “remain our largest operating expense for the foreseeable future.”

The bigger risk is structural. As long as revenue keeps compounding at nearly 50% a quarter, few investors will punish high compute costs; if the data center buildout slows because bond markets turn skittish or local opposition hardens, those costs become much harder to absorb—and there is little the company can do about either.

For Anthropic, the IPO will price two things at once: whether revenue keeps compounding, and whether compute turns from a drag into an advantage.