Anthropic compute ratio: $1.70 of revenue per dollar spent, up from 63 cents

Anthropic took in $1.70 of revenue for every dollar it spent on compute during the third quarter, according to figures circulating before its listing. In 2025 the company spent $7.33bn on compute against about $4.6bn of revenue, 63 cents back per dollar out. A year moved the ratio from 63 cents to $1.70.

What the ratio means

Work the arithmetic backwards and the quarter's compute bill comes to about $9.88bn against $16.8bn of revenue, which rose 50% over the previous quarter. That compute figure runs at $39.5bn a year, 5.4 times the quarterly average the company spent through 2025. Inference for paying customers sits inside that line alongside training runs, and the company splits neither.

“At least $518bn of infrastructure spending over a decade, around 80% of it non-cancellable”

— Anthropic, Infrastructure commitments disclosed before the IPO

What the commitments need

The commitments ahead sit above the current pace. Anthropic has signed for at least $518bn of infrastructure over a decade with six partners, around 80% of it non-cancellable or payable whether used or not, which leaves $414bn owed regardless of demand. A contract of that shape turns a demand problem into a balance-sheet problem the moment growth slows. Spread evenly that comes to $51.8bn a year, 31% above what the company spends now.

Holding the $1.70 ratio against $51.8bn of annual compute needs $88.1bn of revenue a year. The third quarter annualises to $67.2bn, so revenue has to climb 31% to keep the ratio steady. The run rate reached $65bn at the end of July against just over $5bn in August 2025, which is where the growth has to come from.

At $965bn the company trades at 14.4 times annualised revenue, and the $2tn figure discussed for the listing would be 29.8 times. We read the prospectus numbers in September, when the same $518bn first appeared and the market moved 2% on it.

What settles at the listing

The $518bn of commitments equals 30.9% of bitcoin's entire market capitalisation. The IMF flagged $1.4tn of future AI commitments as circular financing two days ago, and this one company accounts for 37% of that figure.

Three things settle at the listing. The compute line in the filing against the $9.88bn we derived. The share of commitments the company books as non-cancellable. And whether the ratio holds through a quarter when revenue growth slows below 50%.

Informational material, not investment advice. The quarterly compute figure here is derived from the published revenue and ratio rather than disclosed, and the listing may price far from the numbers discussed before it.