Anthropic's $84.5 Billion Bet on SpaceX's AI Computing Power

When Anthropic filed its IPO paperwork, few expected the numbers to be this big. According to documents obtained by Reuters, the AI company has signed a deal with SpaceX worth up to $84.5 billion for AI computing power—more than double the figure that surfaced just a few months ago.

The Deal That Keeps Growing

Back in May, SpaceX first mentioned the partnership in its own IPO filing. The initial terms seemed straightforward: Anthropic would pay $1.25 billion per month from May 2026 to May 2029, totaling around $42.5 billion. The agreement covered two data centers, Colossus 1 and Colossus 2, with SpaceX looking to monetize its idle GPU resources.

But the newly leaked prospectus tells a different story. The actual upper limit is $84.5 billion—roughly twice the earlier estimate. Why the discrepancy? The initial figure may have only covered base payments, while the new number includes additional services or escalators. Either way, this is one of the largest computing deals ever signed.

Musk's "Computing Superfactory"

For SpaceX, the timing couldn't be better. Elon Musk is aggressively expanding AI infrastructure, and Colossus 2 is being billed as a "computing superfactory." The plan is to bring over one million GPUs online by the end of the year, most using NVIDIA's Blackwell architecture.

Since merging with xAI in January, SpaceX isn't just building rockets and satellites anymore—it's also renting out massive computing power. And Anthropic is its most important external customer.

An Exit Route for Anthropic

Despite the eye-popping sum, the agreement isn't ironclad. Most terms allow Anthropic to terminate with just 90 days' notice. Even long-term arrangements can be adjusted as market conditions change. That flexibility is crucial in a field where technology and costs shift rapidly.

The Bigger Picture: An Expensive Arms Race

Anthropic expects to invest at least $518 billion in AI infrastructure over the next decade. Its partners include not just SpaceX, but also Amazon, Alphabet, and Microsoft. In the race to build next-generation AI, securing GPU access is like holding a golden ticket. Data centers and computing power have become the hardest strategic assets in tech.

As training costs reach unprecedented heights, deals like this one show just how high the stakes have become. Anthropic is betting big—and it's not alone.

Key Points

$84.5 billion deal: Anthropic's computing agreement with SpaceX is double the previously disclosed amount.
Colossus data centers: The deal covers GPU capacity from SpaceX's Colossus 1 and 2 facilities.
Flexible terms: Anthropic can exit with 90 days' notice, giving it room to adapt.
Massive investment: Anthropic plans to spend at least $518 billion on AI infrastructure over ten years.
Strategic asset: GPU access is becoming the most critical resource in the AI arms race.

Anthropic's $84.5 Billion Bet on SpaceX's AI Computing Power