xAI raises $20B and pushes Colossus toward 2 gigawatts in Memphis
Musk's AI company closed its Series E above target and bought a third Memphis building to expand the world's largest single-site training cluster.
xAI raised $20 billion in a Series E round in January, exceeding a $15 billion target, with backers including Valor Equity Partners, Fidelity, the Qatar Investment Authority, MGX, Nvidia and Cisco Investments. The company said the capital would fund research and accelerate the infrastructure that trains its Grok models.
Around the same time, Musk said xAI had purchased a third building in Memphis to expand its Colossus cluster to roughly 2 gigawatts of capacity. The facility is being outfitted to house about 555,000 Nvidia GPUs purchased for roughly $18 billion, which would make it the largest single-site AI training installation in the world.
Why it matters
The combination of fresh capital and a gigawatt-scale buildout shows how quickly the frontier-lab arms race has shifted from algorithms to raw compute and power. It also concentrates enormous energy and water demand in the Memphis metro, where the project has drawn both economic enthusiasm and local scrutiny over its environmental footprint.
The deal extends a pattern playing out across the South, where AI infrastructure is reshaping mid-size metros, much as Stargate is doing in rural Texas.
xAI raised $20 billion for its Series E funding round, exceeding its targeted goal of $15 billion.— AI Business, report
Reported by Next in Austin. Based on reporting from AI Business.
