Michael A. Blum

Anthropic just told analysts its SpaceX compute contract won't be extended past mid-2027. Here's what you need to know. The remark was reported by Jukan on X from an Anthropic meeting with sell-side analysts, about a week before its IPO. Anthropic reportedly said the contract with SpaceX will not be extended beyond the middle of next year. It is a secondhand report, and some X users say no verified Anthropic source has said this. The deal itself was announced May 6, 2026 as a compute partnership with SpaceX's SpaceXAI unit. Anthropic's S-1 lists commitments of up to $120.5 billion to SpaceXAI through 2029. The initial non-cancellable periods end Jan 27 and March 27, 2027. After that, either side can cancel on 90 days' notice. So a mid-2027 exit fits the contract terms. The same meeting also covered other points. Anthropic reportedly said it has the stability and better talent that open source lacks. It said the AI market is winner take all, and that if it executes properly it will take all of it. It also said developing Opus 5.5 cost more than $10 billion. Some X users doubt that figure, saying the final training run is a small fraction of it. The SpaceX side is being debated. Analysts say Anthropic is set to pay about $9.3 billion a quarter. One estimate puts the lost SpaceX revenue at $7.5 billion in 2027 and $15 billion in 2028. Another says the deal is about a third of SpaceX revenue. Bulls say SpaceX gets scarce compute back and can re-rent it at higher prices. Others say SpaceX could cancel first and reprice. Key numbers: - Up to $120.5B committed to SpaceXAI through 2029 - About $9.3B per quarter, per analyst estimate - Non-cancellable periods end Jan 27 and Mar 27, 2027 - 90 days' notice to cancel after that - Opus 5.5 development cost: more than $10B, per the meeting report - Anthropic's latest quarterly revenue: $17B, up from $11.5B - SpaceX (SPCX) trading at $143.84 Anthropic has not publicly confirmed the remarks, and the deal can be exited from early 2027 either way.