xAI is shifting from using its large AI infrastructure mainly for internal workloads to leasing capacity to other companies, including rivals. Anthropic has agreed to take about 220,000 GPUs at Colossus 1 for $1.25 billion per month through May 2029, although a 90-day termination clause makes the commitment less secure than its multiyear label suggests. Google has secured roughly 110,000 GPUs at Colossus 2 for $920 million monthly from October 2026 through June 2029, while Reflection AI will pay about $150 million per month and an unnamed customer is expected to add approximately $1.11 billion monthly from December 2026. Research findings put xAI's forecast annualized revenue at $27 billion to $41 billion by mid-2026 and combined annualized run-rates above $40 billion with the unnamed customer included. The leasing income is described as supporting the narrative around SpaceX's impending IPO. xAI plans to expand beyond 1.2 million GPUs and more than 2 GW of power capacity by the end of 2026, but execution risks involving chips, power connections and construction could pressure both customer commitments and internal training needs.