Ethan Swope / Bloomberg via Getty Images
In posts on X $TWTR 0.00% on Thursday, Elon Musk walked back the prevailing read of SpaceX's arrangement with Anthropic, saying the Colossus deal is structured as a 180-day term followed by a mutual 90-day cancellation window — not the open-ended multi-year commitment that had been widely reported, according to Reuters.
"SpaceX has not committed to leasing Colossus for years, although it's possible that may be what happens," Musk wrote in a post on X. Earlier reports had framed the deal as running through May 2029, with Anthropic paying SpaceX $1.25 billion per month for compute capacity at the Memphis, Tennessee facilities.
Musk said the short-term structure was SpaceX's preference, 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," he wrote.
Under the agreement, Anthropic gains use of the Colossus 1 facility in Memphis, a cluster built around more than 220,000 Nvidia $NVDA +0.28% GPUs capable of drawing over 300 megawatts of power. The site had opened up for outside customers after xAI shifted its Grok training workloads to the larger Colossus 2 campus, according to The Next Web.
