❯ Musk says SpaceX will use only Nvidia chips, betting on Vera Rubin architecture

EXCLUSIVEOn SpaceX’s earnings call, Musk said the company has decided to build “entirely on Nvidia”, because “we believe Vera Rubin is the best architecture.” He also said SpaceX would get a significant portion of Nvidia’s GPU supply next year, and plans to send space-optimized Vera Rubin NVL72 racks into orbit. Nvidia shares rose after the announcement.

DATA CENTERS TO ORBITThe scale of compute SpaceX wants is the premise behind this news: the company’s stated goal is to build 10-gigawatt-class AI compute by 2027; working backward from the power density of a single Rubin card, the number of GPUs needed would be more than two million. That scale would immediately hit two walls on Earth — grid access and cooling water — and those are exactly the core points of contention in states’ recent tightening of data center approvals. Musk’s solution is to run the same architecture on the ground and in orbit; the orbital version would use nodes made of several dozen Vera CPUs paired with Rubin GPUs. He himself also admitted that heat dissipation and long-term reliability in vacuum remain unsolved engineering problems. Worth comparing: his earlier stance at Tesla was lukewarm, saying Rubin would be hard to scale in the short term, while Tesla is building its own AI hardware — the same person has two chip strategies across two companies.

SUPPLY RESHUFFLENvidia’s allocation decision has directly rewritten the queue positions of other major customers: as SpaceX takes a significant slice of next year’s supply, cloud providers and labs will have to recalculate the amounts they receive. What AMD loses this round is not just orders, but a reference customer — Musk’s public statement that it’s “the best architecture” is more persuasive to buyers than any benchmark. And the business-model assumptions of the satellite internet and remote sensing industries are also being shaken: if orbital compute actually works, data won’t all have to be downlinked for processing, and bandwidth — a long-standing constraint — would carry less weight.

▪ SIGNALA single sentence — “only Nvidia” — has already set aside a large chunk of next year’s GPU production schedule.