xAI Sells Colossus Compute to Anthropic, Signaling a Neocloud Pivot
In a move that surprised industry observers, xAI and Anthropic announced a partnership this week that will see the Claude-maker leasing all available compute capacity at xAI's Colossus 1 data center. The deal, estimated to be worth billions of dollars, instantly monetized one of xAI's most impressive infrastructure achievements and raised a provocative question: is Elon Musk's AI company becoming a neocloud?
The arrangement covers roughly 300 megawatts of computing power, allowing Anthropic to immediately raise its usage limits for customers. For xAI, the partnership delivers a major revenue stream at a critical moment. The company, now combined with SpaceX into a $1.25 trillion entity, is reportedly speeding toward an initial public offering in June. Having Anthropic signed on as a flagship customer makes it easier to convince investors that xAI's massive data center investments can generate returns.
Elon Musk explained on X that xAI had already moved its training workloads to a newer facility, Colossus 2, making the older capacity surplus. But industry analysts see something deeper happening. Most AI labs treat compute as a strategic resource to be hoarded for internal model development. Google CEO Sundar Pichai recently admitted that Google Cloud revenue suffered because the company chose to reserve GPUs for its own AI products rather than rent them out. Meta took a similar path, building its own cloud infrastructure to ensure sufficient capacity for its AI ambitions.
xAI is moving in the opposite direction. By selling compute to a direct competitor, Musk is signaling that infrastructure itself may be the real business. The model resembles neocloud providers like CoreWeave, which buy Nvidia GPUs and rent them to AI developers. The difference is scale and ambition. xAI is not just building earthbound data centers; it is planning orbital compute facilities by 2035 and manufacturing its own chips through the proposed Terafab facility in Texas.
The valuation gap between xAI and pure-play neoclouds is staggering. While xAI was valued at $230 billion in January, CoreWeave commands less than a third of that despite managing comparable compute power. Whether investors will reward Musk's infrastructure-first vision remains an open question.
Why It Matters
For enterprises navigating the AI economy, xAI's pivot offers a revealing case study. As demand for inference and training capacity continues to outpace supply, the companies that control physical infrastructure may wield more leverage than those building the models themselves. If Musk's bet pays off, the competitive landscape could shift from a race for better algorithms to a battle for better silicon, power contracts, and data center real estate.