The supercomputer in question is Colossus, which was built from a cluster of 100,000 Nvidia GPUs. While it didn’t take 19 days exactly as Musk said that the entire project took 122 days from start to finish. However, Musk had claimed in June that from hardware installation to begin training, Colossus took only 19 days.

Jensen Huang praised Elon Musk's xAI for building a supercomputer, Colossus, in just 19 days, calling it "superhuman."

Jensen Huang of Nvidia commended xAI and Elon Musk for their exceptional work on the Colossus supercomputer, made from 100,000 GPUs, completed in