SpaceX S-1 Filing Contradicts Musk’s Claims on Anthropic Compute Lease Duration
A discrepancy has emerged between SpaceX’s securities filing and public statements regarding the duration of a major cloud services agreement with Anthropic, raising questions about disclosure accuracy during the company’s quiet period.
Elon Musk has publicly characterised the compute lease between SpaceX and Anthropic as a short-term arrangement, directly contradicting the terms outlined in SpaceX’s recent S-1 filing. Speaking on X, Musk stated that the agreement is a 180-day lease with a mutual 90-day cancellation notice, asserting that the short-term structure was requested by SpaceX to retain flexibility should compute supply become constrained.
This assertion clashes with the formal documentation submitted to regulators, which describes the deal as a three-year payment commitment extending through May 2029. Page F-62 of the filing explicitly states that the customer has agreed to pay a monthly fee through May 2029, with capacity ramping in May 2026 at a reduced fee. The same payment obligation is reiterated on pages F-96, 13, and 146, including a specific figure of $1.25 billion per month.
The filing confirms that the agreement may be terminated by either party upon 90 days’ notice, a clause that aligns with Musk’s description of the cancellation terms. However, the regulatory document frames the overall arrangement as a binding three-year obligation, whereas Musk’s comments suggest a much more transient commitment. The deal, signed on May 3, 2026, involves exclusive use of the Colossus cluster and grants Anthropic ownership and intellectual property rights over its content and models.
xAI did not respond to requests for clarification regarding the discrepancy between the public statements and the regulatory filing. The context of the deal involves a significant financial commitment, with xAI pledging billions of dollars in monthly fees to secure compute capacity, providing revenue for xAI and aiding Anthropic’s efforts in the competitive landscape for artificial intelligence infrastructure.
The contradiction arises during SpaceX’s securities filing process, a period typically subject to quiet period restrictions regarding material information. While the Securities and Exchange Commission rarely acts on such discrepancies and Musk has historically shown little regard for regulatory scrutiny, the inconsistency presents a potential issue for investors assessing the long-term stability of the company’s revenue streams and contractual obligations.
