Musk and SpaceX filings diverge on Anthropic compute deal length

A public disagreement has emerged between Elon Musk, the CEO of SpaceX and xAI, and official regulatory filings regarding the duration of a major compute agreement between SpaceX and artificial intelligence company Anthropic. Musk stated publicly on the social media platform X that SpaceX has not committed to leasing its Colossus compute cluster to Anthropic for years, although he noted “although it’s possible that may be what happens.” Instead, Musk characterized the arrangement as a short-term deal. “This is a 180 day lease with 90 day notice mutual cancellation thereafter. The short term was our request, not Anthropic’s. We won’t leave them hanging and will provide a reasonable off-ramp, but if compute gets super tight I said we might need it back at some point,” Musk wrote.

However, this description directly diverges from the details disclosed in SpaceX’s S-1 filing—the SEC registration document for public offerings. According to the official filing, the agreement was entered into on May 3, 2026, and establishes a much longer timeline. The document states that the customer has agreed to pay a monthly fee through May 2029, representing a three-year commitment rather than a temporary lease. Specifically, the filing notes that the customer has agreed to pay a monthly fee of $1.25 billion through May 2029. While the filing confirms that the agreement may be terminated by either party upon 90 days’ notice, the structural framing of the contract in the registration document describes a multi-year financial commitment, contrasting with Musk’s assertion that the short-term nature of the deal was driven by SpaceX’s own request.

The discrepancy between the CEO’s public statements and the company’s official disclosures carries potential regulatory implications. The Securities and Exchange Commission (SEC), the US securities regulator, maintains strict guidelines for companies preparing for public offerings. This period of preparation is known as a quiet period, which is a time during which a company is restricted from making public statements about its securities. Because SpaceX is in the process of marketing its securities, Musk’s public downplaying of the contract’s duration has raised concerns. The contradiction between his comments and the S-1 filing could be viewed as a material misrepresentation made while marketing a security, an allegation that typically invites regulatory scrutiny during a sensitive transition to public markets.

Why it matters

The conflict between Musk’s public comments and official SEC filings creates uncertainty about the deal’s true nature and raises potential regulatory concerns regarding material misrepresentation during a quiet period.