Musk to expand xAI's training capacity to a monstrous 2 gigawatts with third building at Memphis site — announcement comes days after Musk vows to have 'more AI compute than everyone else'

Musk on xAI background.

Elon Musk has revealed that xAI has purchased a third building in its Memphis, Tennessee, site near the Colossus 2 data center to expand its training capacity. The billionaire said on X that the structure will be named 'MACROHARDRR', an extension of his 'Macrohard' project, wherein Musk intends to build software completely from the ground up by solely using AI agents. This additional purchase will supposedly push xAI’s overall training compute capacity to a staggering 2 gigawatts.

xAI has bought a third building called MACROHARDRR. Will take @xAI training compute to almost 2GW. Try @Grok. Download latest app.December 30, 2025