Anthropic is SpaceX’s biggest customer, bringing in a third of revenue

A SpaceX hangar and launch tower at NASA’s Kennedy Space Center in Florida, in a photo published in March 2021.

Anthropic is the “ Customer B ” that made up 34.5% of SpaceX’s third-quarter revenue, Bloomberg reports, overtaking the US government as its biggest client. Anthropic could spend up to $120.5B on SpaceX computing through 2029, but can cancel after early 2027.

Anthropic is SpaceX’s largest customer, accounting for more than a third of its revenue in the third quarter, Bloomberg reported on Thursday, citing a person familiar with the matter.

SpaceX said in a filing last week that about 34.5% of its quarterly revenue came from one client. The filing named it only as “ Customer B, ” a buyer of computing power from its AI unit, now called Super Intelligence.

That makes Anthropic a bigger customer than the US government, long SpaceX’s main source of income. Anthropic declined to comment, and SpaceX did not respond, Bloomberg said.

Anthropic rents computing power at SpaceX’s data centres in Memphis, Tennessee. Its IPO filing shows it could spend up to $120.5B under contracts running to 2029, about $3.1B a month from December.

But Anthropic can cancel with 90 days’ notice after early 2027, leaving SpaceX heavily exposed to one client. The AI unit turned a profit for the first time last quarter, as SpaceX’s revenue rose 161%.

Musk has argued that SpaceX, with its Starlink and launch businesses, is safer than other neoclouds, firms that rent out AI computing, as lenders pull back.

“ Debt markets have almost entirely shut off access to money for any company that doesn’t have substantial revenue independent of AI data centers, ” he wrote on X.

SpaceX also rents computing power to Google, which pays about $920M a month.

I am the Editor in Chief for TNW, covering technology not as a parade of launches and valuations, but as a system of influence, persuasion, (show all) I am the Editor in Chief for TNW, covering technology not as a parade of launches and valuations, but as a system of influence, persuasion, and change. I write about startups, venture capital, digital policy, and Europe ecosystem, with an eye on the larger story beneath them: who gets to build the future, who profits from it, and how Europe is learning to speak in a louder voice of its own. Before moving into senior editorial leadership, I've built my career for over +10 years across journalism, storytelling, content strategy, SEO, and digital publishing, with experience in SaaS, hospitality, art, and culture.

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