How much is SpaceX charging for AI compute capacity?

Anthropic is paying $1.25 billion（約2000億円） per month; Alphabet is paying $920 per month for about 110,000 Nvidia GPUs starting in October; and Reflection AI is paying $150 per month.

How long are these compute contracts?

Anthropic's deal runs for three years, ending in May 2029. The Alphabet and Reflection AI contract start and end dates are not specified in full detail beyond Alphabet's October start date.

Why does SpaceX have spare compute capacity to rent?

SpaceX's Grok AI model was using only about 11% of its GPU capacity, leaving the majority available to lease to other companies.

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SpaceX has signed three major AI compute deals worth approximately $27.5 billion（約4.4兆円） in annual revenue, turning its excess GPU capacity into a potential primary revenue driver.

Yahoo Finance AI7h ago5 min read

Key takeaway

SpaceX has signed three major contracts to rent out AI computing power from its data centers, generating approximately $27.5 billion（約4.4兆円） in annual revenue. The company is monetizing excess GPU capacity that its own Grok AI model does not fully use, creating a new recurring, high-margin revenue stream that may become its largest business. This matters because it demonstrates how SpaceX is pivoting from speculative future AI projects to immediate, profitable compute rental—a business with strong demand given the current shortage of Nvidia chip allocations.

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3 Key Points

What happened
SpaceX announced three AI compute leasing agreements—Anthropic will pay $1.25 billion（約2000億円） per month for three years (through May 2029) for 300 megawatts of capacity at Colossus 1; Alphabet agreed to lease about 110,000 Nvidia GPUs starting in October for $920 per month; and Reflection AI committed to $150 per month for access to Nvidia chips at Colossus 2. Together these contracts represent about $27.5 billion（約4.4兆円） in annualized revenue.
Why it matters
SpaceX's Grok AI model was using only about 11% of its GPU capacity, so the company monetized the excess. This creates a large, recurring, high-margin revenue stream for a business previously valued around future projects. For context, SpaceX's entire 2025 revenue was $18.7 billion（約3兆円）, so the Anthropic deal alone ($15 billion（約2.4兆円） annually) is a significant needle-mover. Many enterprise AI companies currently face difficulty securing Nvidia chip allocations quickly, which may indicate room for this business to grow over the next few years.
What to watch
The Anthropic contract runs through May 2029. With enterprise demand for AI chips outpacing supply, SpaceX's compute rental business could expand substantially, potentially becoming the company's primary revenue driver as soon as next year.

FAQ

How much is SpaceX charging for AI compute capacity?: Anthropic is paying $1.25 billion（約2000億円） per month; Alphabet is paying $920 per month for about 110,000 Nvidia GPUs starting in October; and Reflection AI is paying $150 per month.
How long are these compute contracts?: Anthropic's deal runs for three years, ending in May 2029. The Alphabet and Reflection AI contract start and end dates are not specified in full detail beyond Alphabet's October start date.
Why does SpaceX have spare compute capacity to rent?: SpaceX's Grok AI model was using only about 11% of its GPU capacity, leaving the majority available to lease to other companies.

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