Anthropic Rents the Whole of SpaceX's Colossus Data Centre

Anthropic has signed a deal to rent the entire computing capacity of SpaceX's Colossus 1 data centre in Memphis, Tennessee. The company announced the agreement alongside a related decision to lift the five-hour rate caps on Claude Pro, Max, Team and Enterprise subscribers, and to remove peak-hour throttling for Pro and Max altogether.

The numbers are large enough to be worth pausing on. Colossus 1 currently houses around 220,000 NVIDIA GPUs, a mix of H100, H200 and GB200 systems, and Anthropic says the deal gives it more than 300 megawatts of new capacity within the next month. That is the kind of capacity expansion frontier labs were doing across an entire calendar year as recently as 2024.

The Musk reversal

The reason this deal raised eyebrows is the seller's name. SpaceX merged with xAI earlier this year, and Elon Musk has spent much of the past two years suing OpenAI and publicly disparaging Anthropic. Musk's previous public position on Anthropic was, to put it mildly, not flattering.

That has now flipped. After spending time with senior Anthropic staff, Musk said he was "impressed" with the team and that the deal made commercial sense. Al Jazeera framed the move as part of a broader thawing in Musk's posture toward AI rivals he is not currently litigating against.

For SpaceX, the upside is straightforward. Colossus 1 was sitting partly idle and now has a single anchor tenant paying for everything. For Anthropic, it solves the harder problem in frontier AI right now, which is finding power and silicon faster than your competitors.

What it means for users

The most immediate effect is on rate limits. Claude users on the consumer paid tiers have been hitting weekly caps for months, and the lifting of the five-hour limit removes a major source of friction. Pro subscribers in particular have had peak-hour restrictions imposed during the busiest US working hours; those are now gone.

The longer arc is harder to read. Anthropic recently overtook OpenAI on annualised revenue, and we covered the company's push into financial services agents last week. The Colossus deal suggests Anthropic believes the demand it is now seeing is durable enough to justify renting an entire xAI-built facility.

Space-based compute, sort of

Buried in the announcement is a more speculative line. Anthropic and SpaceX say they have also agreed in principle to explore "multiple gigawatts of orbital AI compute capacity." The sentence is doing a lot of work. There are no engineering specifics, no timeline and no cost estimate. CNBC noted the language is broad enough to mean anything from a study group to actual hardware.

Treat that part as aspirational. The Memphis side of the deal, by contrast, is concrete: 220,000 GPUs, a contract, a date. Claude users will feel the effects of that long before any compute makes it to orbit.