How long is Anthropic’s lease with SpaceX? Opinions vary.

TL;DR AI
2 min readKey summary
Elon Musk said SpaceX’s deal with Anthropic is only a short lease and can be canceled with 90 days’ notice.
That account conflicts with SpaceX’s S-1 filing, which says Anthropic will pay monthly fees through May 2029.
The filing also repeats the same three-year structure in multiple sections, suggesting a longer commitment.
The discrepancy matters because it affects how investors assess the deal’s size, duration, and financial impact.



