Analysis
Anthropic's compute bill hit $10 billion in the third quarter, consuming 58% of the company's revenue -- up from 48% the quarter before -- according to an updated S-1 filing the AI company submitted to the SEC this week ahead of its planned IPO, TechCrunch reported.
What changed since Pulse's last Anthropic IPO story
Pulse previously covered analysts' skepticism that Anthropic's roughly $2 trillion IPO ask adds up against its $17 billion in quarterly revenue. This update adds the cost side of that math: the same filing extends Anthropic's disclosures by one additional quarter, through September 30, and for the first time breaks out exactly how much of that revenue compute consumes. Revenue reached $17 billion in the quarter, up from $11.5 billion the quarter before -- 47% sequential growth, matching the quarter-over-quarter figure Pulse previously reported -- but the compute bill grew even faster, eating further into any read of Anthropic's underlying margins. That $2 trillion ask looks more fragile against a 58% compute-to-revenue ratio than against the $17 billion revenue number alone, which is the figure skeptics in Pulse's earlier report focused on.
Anthropic funding history and compute spending
Anthropic's recent capital raises, according to Pulse's company data, include:
“- Debt financing, October 2026 -- $63B, led by Bank of America, Blackstone, Citi Ventures and Morgan Stanley.”
- Series H, May 2026 -- $65B at a $965B valuation, led by Altimeter Capital, Dragoneer Investment Group, Greenoaks and Sequoia Capital.
- Debt financing, October 2026 -- $63B, led by Bank of America, Blackstone, Citi Ventures and Morgan Stanley.
- Japan share-sale tranche, November 2026 -- up to $3.5B, part of the same S-1 update this story covers; Pulse has previously reported that the filing does not state the overall IPO size.
Much of that capital funds compute: Anthropic reportedly pays SpaceX $1.25 billion a month, and holds multibillion-dollar deals with neocloud providers Nscale, Akamai and Volta -- smaller providers that charge more than hyperscalers for flexible contracts, TechCrunch reported. Anthropic is also building its own compute base through a project called Anthropic Direct, though the filing suggests demand is growing faster than that effort can keep pace.
The compute-to-revenue ratio investors are watching
The filing states that revenue per compute dollar rose steadily from early 2025, peaked at just over 2x last quarter, and has since fallen to 1.72x. Short-term compute commitments made up $5 billion of the $10 billion quarterly bill, and the filing itself warns that short-term compute "currently costs significantly more than comparable compute procured under our multi-year commitments." Anthropic told investors compute and infrastructure expenses will "increase in absolute dollars" and remain its largest operating expense for the foreseeable future.
What the headline misses
However, the rising compute share isn't unique to Anthropic -- rival AI labs face similar buildout economics, and investors have so far tolerated the ratio because revenue is still growing nearly 50% a quarter. The risk is what happens if that growth decelerates while compute commitments, many of them multi-year, do not. Bond-market jitters and intensifying local opposition to new data centers are two headwinds TechCrunch flagged that could make Anthropic's compute math harder to defend once it is a public company answering to quarterly earnings calls rather than private investors.