Notes on the xAI/Anthropic data center deal

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By AI Maestro May 10, 2026 1 min read
Notes on the xAI/Anthropic data center deal

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There weren’t many new announcements from Anthropic at yesterday’s Code w/ Claude event, but the biggest was their deal with SpaceX/xAI to use “all of the capacity of their Colossus data center”.

Key Takeaways

  • The data center in question has a particularly bad environmental record, operating without Clean Air Act permits and causing health issues.
  • Anthropic are getting access to Colossus 1, but xAI will retain their larger Colossus 2 data center for their own work.
  • xAI announced the deprecation of several models including Grok 4.1 Fast with just two weeks’ notice, leading to criticism and a migration issue.
  • Elon Musk’s tweet indicated that Anthropic would provide compute resources to AI companies taking steps to ensure they are good for humanity, but reserves the right to reclaim it if used their AI engages in harmful actions.

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