Anthropic Has Promised $417 Billion For Computing

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Anthropic’s IPO filing has a number that stops people cold. A net loss of $80.7 billion in the first half of 2026. On $16.3 billion of revenue.

How A $6 Billion Loan Became A $72 Billion Loss

Here’s the strange part. About $72.4 billion of that loss is one line: the rising value of convertible notes and similar securities. The notes still outstanding all belong to Amazon: a loan of just $6.2 billion.

How does a $6 billion loan create a $72 billion loss?

Because it’s not an ordinary loan. It’s a ticket to own Anthropic. Amazon’s notes, issued starting in 2023, convert into up to 1.84 billion Anthropic shares at the IPO. When Anthropic’s value climbed toward $1 trillion, that ticket became worth a fortune. Accounting rules make Anthropic book the rise in the ticket’s value as a loss. (Step by step: how a $6 billion loan became a $72 billion loss.)

So the $72 billion isn’t cash out the door. In the same six months, Anthropic’s business brought in $3.9 billion of cash. This charge mostly stops once the notes convert after the IPO.

But “non-cash” doesn’t mean “free.” It means someone else pays: you, if you buy the IPO. Those 1.84 billion shares go to Amazon, not to new investors. Amazon’s stake is capped at 12%, a cap Amazon can waive. At a $1.5 to $2 trillion IPO value, a 12% stake is worth $180 to $240 billion. Amazon put in about $18 billion in total. That’s a return of roughly 10 to 13 times, and the bill shows up as dilution for everyone else.

And more convertible money is lined up. Google can lend up to $20 billion more. The filing also allows up to $42 billion of convertible notes to Broadcom or a financial partner to cover leases. Blackstone is reportedly lined up to take $9 billion of junior debt.

The Bigger Promise: $417 Billion Of Computing

Now the number that should get more attention than any of these. Anthropic signed about $417 billion of new or expanded computing contracts in the first five months of 2026. By June 30, its leases not yet started totaled $321 billion, up from $50 billion at the end of 2025. Noncancelable purchase commitments are $266 billion, up from $55 billion.

$6.2B	Convertible notes outstanding (principal)
$131.7B	Cash and short-term investments
$417B	New or amended compute contracts, Jan–May 2026
26x	Contracts ÷ first-half revenue

Anthropic S-1, June 30, 2026 (reported); 26x is our arithmetic ($417B ÷ $16.3B).

These contracts aren’t debt, and most aren’t on the balance sheet yet. But the filing calls them “substantial fixed obligations”: many must be paid whether or not the computing gets used. Anthropic has about $132 billion of cash against more than $417 billion of promises. The gap gets filled by one thing: revenue that keeps growing.

Has This Happened Before?

Has this movie played before? Yes. In 2000, telecom companies borrowed heavily to build huge network capacity, sure that internet traffic would keep exploding. Traffic did keep growing. But prices fell faster, and many of those companies went broke. Anthropic’s version of that risk comes from contracts, not borrowing, and it’s in its own filing: it buys computing 12 to 18 months ahead, while the price of AI keeps falling.

The convertible notes are a dilution problem. The compute contracts are the bigger commitment. Watch one ratio after the IPO: compute cost as a share of revenue. It fell from about 200% a year ago to about 55% in the first half. If it keeps falling, the $417 billion is a growth plan. If it turns back up, it’s a weight.

The hopeful way out is real. At the $100 billion-plus revenue pace investors expected in August for year-end, $417 billion over seven or so years is about $60 billion a year, roughly what Anthropic already spends on compute relative to revenue. Keep growing, and the promises pay for themselves. That’s the whole bet.

For the full side-by-side with Google’s IPO, see Anthropic IPO vs Google IPO.

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