Recently, xAI entered into a significant agreement with Anthropic, committing billions monthly for exclusive access to the Colossus cluster. This collaboration marks a pivotal moment for both organizations, providing xAI with essential revenue and enabling Anthropic to advance in the competitive landscape of computing resources.
However, Elon Musk, in a recent post on X, addressed the specifics of SpaceX's commitment to the deal, suggesting a more nuanced picture. He clarified that SpaceX's lease arrangement for the Colossus cluster is not as long-term as initially perceived. "SpaceX has not committed to leasing Colossus for years, although it's possible that may be what happens," Musk stated. He explained that the current agreement is structured as a 180-day lease, with a mutual cancellation option available after a 90-day notice period. This short-term setup was requested by SpaceX, not Anthropic, he emphasized.
Musk's remarks appear to contradict details from SpaceX's recent S-1 filing, which outlines the deal as a three-year contract, confirming the standard 90-day cancellation notice. According to the filing, dated May 3, 2026, Anthropic is set to pay a monthly fee through May 2029, with a ramp-up in capacity starting at a reduced rate in May 2026. This agreement allows either party to terminate the contract with three months' notice, yet it strongly implies a longer-term commitment from Anthropic.
The essence of the filing indicates that Anthropic has agreed to a substantial financial commitment, which raises questions about the interpretation of the lease terms. While Musk's comments suggest flexibility, the formal agreement appears to establish a more binding relationship. The language used in the filing reinforces the notion of a three-year lease, as it explicitly states that Anthropic will pay a significant monthly fee through 2029.
Despite attempts to clarify the situation, xAI has not responded to inquiries regarding the specifics of the agreement. This lack of transparency leaves room for interpretation about the nature of the lease and the obligations of both parties. The distinction between agreeing to pay for a service and committing to provide that service is critical in this context.
In conclusion, while the details of the lease may seem complex, they highlight the evolving dynamics of partnerships in the tech industry. As companies like Anthropic and SpaceX navigate these agreements, the implications for future collaborations and technological advancements are profound. This development signals a shift towards more flexible and innovative arrangements in the ever-evolving landscape of AI and computing.