SpaceX’s IPO filing has revealed that Anthropic is paying $1.25 billion per month for compute capacity — a staggering $15 billion annually — making the AI lab nearly the single largest source of commercial revenue for a company whose total yearly revenue sits around $18 billion.

The deal was announced several weeks ago but financial terms only surfaced now through the mandatory IPO disclosure. The scale of the commitment underscores how compute has become the dominant cost driver in frontier AI development, with a single lab approaching the spending power of a small nation’s IT budget.

Anthropic signs massive compute deal with SpaceX