Anthropic leases Musk Colossus data center access to scale its Claude models, gaining control of the full Colossus 1 cluster that SpaceXAI has made available.
The agreement gives Anthropic use of more than 222,000 Nvidia GPUs and over 300 megawatts of compute power, including H100 and H200 chips and GB200 accelerator systems as reported by SpaceXAI.
Colossus 1 was originally built to power xAI's Grok models, and SpaceX is focusing engineering effort on a follow up cluster called Colossus 2 while leasing the first generation to third parties.
Expansion Effects And Strategic Details
Anthropic said the additional capacity immediately changed product limits for paid Claude users, doubling Claude Code five hour rate limits across paid tiers and removing the peak hours limit reduction for Pro and Max subscribers.
The company also said it has considerably raised API rate limits for Claude Opus models to increase developer request volumes, and it listed similar capacity agreements with Amazon, Google, and Microsoft.
Anthropic signaled plans to deploy future infrastructure into Europe and Asia to meet enterprise demand for local data residency and regulatory compliance, especially in sectors such as healthcare, finance, and government.
The company said it will prioritize partnerships in politically stable democratic countries with secure AI supply chains and explore ways to offset electricity cost increases while reinvesting in communities hosting data centers.
Anthropic also unveiled a Claude feature called dreaming that lets Claude powered agents review past work, identify recurring errors, and reorganize memory files containing user preferences so agents can refine behavior between sessions.
Elon Musk said in an X post that he approved leasing Colossus 1 to Anthropic after meeting senior company members to understand their safety work and that he was impressed, adding that no one set off his evil detector.
The move marks a shift from earlier comments Musk made about Anthropic, when he described Claude as misanthropic and evil, and it leaves Colossus 1 running models for a direct rival while SpaceX builds its next cluster.
