Elon Musk grows xAI's Colossus supercomputer with third data center

Elon Musk’s AI company xAI is significantly expanding its Colossus supercomputer infrastructure by acquiring a third data center building, named “MACROHARDRR,” near Memphis, Tennessee, close to Southaven, Mississippi. This expansion aims to boost xAI’s AI training capacity to nearly two gigawatts of compute power, potentially making Colossus one of the largest and most powerful AI supercomputers globally. The buildout plans to house at least one million GPUs, with Colossus 2 alone expected to contain around 550,000 Nvidia chips, at a cost reaching tens of billions of dollars. The new facility is slated for conversion into a data center starting in 2026, supporting both the existing Colossus and the under-construction Colossus 2 sites. The immense power requirements of this multi-gigawatt AI system have raised significant environmental and community concerns. The electricity demand is comparable to that of approximately 1.5 million U.S. homes