Anthropic has agreed to pay SpaceX $1.25 billion per month through May 2029 for access to cloud computing infrastructure, a long-awaited US regulatory filing revealed on Wednesday. The deal amounts to Anthropic sending a rival roughly $15 billion annually, an extraordinary sum that underscores how access to compute has become the defining bottleneck in the race for advanced artificial intelligence.
The agreement gives the Claude developer access to GPUs at Colossus and Colossus II, a pair of massive data centers in Tennessee and Mississippi boasting over one gigawatt of computing power. While SpaceX originally rushed to build these facilities for its xAI unit—developer of the Grok chatbot—Elon Musk noted that the company ultimately did not require the full extent of their capacity. The specific financial terms had remained undisclosed until now.
According to the SpaceX S-1 filing, Anthropic is paying an unspecified reduced fee for May and June before the full $1.25 billion monthly rate takes effect. This massive investment highlights Anthropic's hunger for resources to power its expanding product line, including its popular AI coding tools. The company’s revenue is projected to exceed $10 billion by the second quarter of 2026, per reports from The Wall Street Journal.
An Anthropic spokesperson confirmed the figures, while Musk posted on X that SpaceX is "in discussions with other companies to do the same." SpaceX expects to enter into additional similar service contracts for its compute infrastructure. The filing states that the company maintains sufficient capacity for its own AI training and inference demands while pursuing a "dual monetization strategy" to generate returns on invested capital.
The filing details SpaceX’s business outlook ahead of what could be the largest IPO in history. SpaceX aims to raise approximately $75 billion at a valuation of $1.75 trillion. After filing confidentially on April 1, the company released a cleaned-up version of the paperwork on Wednesday. Reports suggest SpaceX could debut on the Nasdaq under the ticker SPCX as early as June 12.
