Compute
Anthropic Takes All of SpaceX’s Colossus for $15B/Year, Plans Orbital Compute
Full access to 300+ MW of Colossus 1 in Memphis — more than 220,000 NVIDIA H100/H200/GB200 GPUs — plus an unusual side clause to explore multiple gigawatts of space-based AI infrastructure.
Anthropic and SpaceX announced Wednesday morning a compute partnership of a scale and structure that has no clean precedent in the AI industry. Under the agreement — revealed on the keynote stage at Anthropic’s Code with Claude developer conference in San Francisco — Anthropic takes full access to all 300-plus megawatts of the Colossus 1 supercluster in Memphis, comprising more than 220,000 NVIDIA H100, H200, and GB200 GPUs, with a contractual path to expand into Colossus 2 as that facility comes online. The headline number on the deal is $15 billion annually.
The deal is structured as an exclusive multi-year compute lease rather than an equity transaction, but its consequences for the industry’s compute league table are immediate. With Colossus 1 in hand, Anthropic’s effective training and inference capacity in the first half of 2026 jumps past Microsoft’s Azure-Anthropic allocation and approaches the combined frontier-model capacity available to xAI itself — a striking inversion given that the Memphis facility was originally built to train xAI’s Grok models. SpaceX, which assumed operational control of the cluster during Elon Musk’s 2025 restructuring of his AI compute holdings, becomes a pure infrastructure landlord for Anthropic for the duration of the contract.
The capacity windfall is being passed to subscribers immediately. Anthropic confirmed that usage caps on Claude Pro and Claude Max plans are lifted effective today, with priority queue access for enterprise tiers receiving the largest share of the new compute pool. Pro users who had been throttled during peak hours over the past several weeks — a recurring complaint following the Claude Mythos launch — should see those caps disappear by end of day.
The most unusual element of the agreement is buried in the partnership’s appendix: both companies have committed to a joint research and engineering effort exploring multi-gigawatt orbital AI compute. The language stops short of announcing a specific launch program, but the framing — “multiple gigawatts of space-based training and inference capacity within the decade” — treats orbital data centers as a near-term industrial roadmap rather than science fiction. SpaceX’s Starlink launch cadence and Anthropic’s capital position make the pairing more credible than the same announcement from any other two companies, though the engineering questions — thermal management, radiation hardening, latency to ground, and the political question of who regulates a compute cluster in orbit — remain entirely unanswered.
For the H1 2026 compute league table, the deal materially shifts the center of gravity. Microsoft’s Azure remains the largest single AI cloud, but the Anthropic-SpaceX-xAI-adjacent triangle now controls a comparable share of frontier training compute — and unlike the Microsoft-OpenAI axis, the new triangle is not bound by a single equity partnership. Anthropic CEO Dario Amodei, asked from the stage whether the deal signals a strategic distancing from the existing Amazon and Google Cloud partnerships, replied that “our compute strategy has always been additive, not exclusive.” The 10-K math will tell the rest of the story later this year.