Elon Musk said on Tuesday in an X post that SpaceX and xAI will exclusively use Nvidia GPUs "because they are the best," later clarifying during SpaceX's earnings call that Nvidia's Vera Rubin NVL72 rack-scale system's design is above everything else available today. "Going forward, we have decided to build exclusively on Nvidia, because we think the Vera Rubin architecture is the best architecture," Musk said, adding, "We are exclusive to Nvidia." He praised the design of the NVL72 VR[200] computer as "a much better design than, say, having a standard rack style design." Historically, xAI has exclusively used Nvidia's Hopper and, more recently, Blackwell hardware to train multiple generations of Grok, with its Colossus supercomputers using Nvidia's accelerators for years. Musk also said SpaceX plans to deploy Vera Rubin in space, stating, "With respect to the Starmind AI satellite, which will be essentially an optimized Vera Rubin NVL72 computer... we expect to start launching this next year." He said the company expects to deploy the system "on the ground as well as in orbit." The article notes that deploying an NVL72-scale machine is a more ambitious project than Nvidia's Space-1 Vera Rubin Module, which is designed to deploy several, perhaps a dozen, of Rubin AI accelerators in space.