Anthropic Signs Computing Deal With SpaceX to Meet AI Demand

Anthropic plans to access more than 300 megawatts of computing capacity from a large SpaceX data center in Memphis known as Colossus 1, the companies said on Wednesday. Anthropic said the partnership would "substantially" increase its computing resources and enable it to raise usage limits for its AI products.

Terms of the deal were not disclosed. Other data center developers have recently been able lock in tenants at terms of anywhere from $1.5 million to $2 million per megawatt per year. At that rate, the Anthropic deal would easily represent hundreds of millions of dollars worth of business for xAI annually.

The arrangement brings together two competitors in the race to develop more advanced AI systems. Anthropic has seen demand surge in recent months as more customers flock to use its tools to streamline the process of coding and other tasks. In addition to SpaceX, Anthropic has also tapped Alphabet Inc.'s Google for chips and cloud services.

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At a conference after the SpaceX deal was announced, Anthropic Chief Executive Officer Dario Amodei said his company is "working as quickly as possible" to secure more computing resources after experiencing "80x growth" in annualized revenue and usage in the first quarter of this year.

Musk, a fierce critic of Anthropic rival OpenAI, said he spent time last week with senior staffers at Anthropic and decided to lease Colossus 1 to the company after making sure "Claude is good for humanity."

"No one set off my evil detector," he said in a post on X. "So long as they engage in critical self-examination, Claude will probably be good."

Still, Anthropic is a competitor to xAI, including for talent. Ross Nordeen, one of xAI's founding members, said on Wednesday that he was joining Anthropic's compute team. Nordeen had spent years at Tesla Inc. before moving to xAI, and left the startup about month ago. He was the last xAI cofounder to depart the company, where he also focused on computing power. Musk is the only founder left at xAI.

Though Musk's xAI is behind on coding, the AI startup - now part of SpaceX - has been ahead of some in building data centers and stockpiling Nvidia Corp. chips. XAI's computing deals could position the company as an infrastructure provider and drive up revenue as SpaceX prepares to go public.

Musk's company previously agreed to provide some of its computing resources to AI coding startup Cursor as part of a deal that would see both firms collaborate. XAI has been building data centers in Tennessee and Mississippi, and has raised capital to rent the chips for the facilities.

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On Wednesday, Musk said xAI would be "dissolved as a separate company." Going forward, he said in a post, "it will just be SpaceXAI, the AI products from SpaceX."

Musk has been reorganizing xAI by bringing in personnel from SpaceX to help oversee the firm, lead software infrastructure and optimize chips usage. XAI's compute utilization rate for its chips was running at only 11%, according to an internal memo last month, suggesting the company had more computing resources than needed solely for its own AI efforts.

As part of the new agreement, Anthropic said it has also "expressed interest in partnering with SpaceX to develop multiple gigawatts of orbital AI compute capacity." Musk has previously said he wants to put data centers in space and tap into solar power.