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Elon built Colossus 1 to make Grok beat Claude; on 2026-05-07 Anthropic leased…

2026-05-07 · 16:32 UTC ·@Legendaryy ·1 min read

Brief

Colossus One, the 300 MW, 220,000‑GPU supercomputer Elon built to power Grok, was leased in full to Anthropic on May 7, 2026. Musk folded xAI into SpaceX the same afternoon, meaning the Grok-designed flagship will run Anthropic's Claude weeks before a planned SpaceX IPO; markets reacted sharply to the deal.

Why it matters

Elon built Colossus 1 to make Grok beat Claude; on 2026-05-07 Anthropic leased the entire Colossus One cluster — all 220,000 GPUs and 300 MW — to run Claude.

Key details

  • On the same afternoon (2026-05-07) Musk dissolved xAI as a standalone company and folded it into SpaceX, so the flagship AI supercomputer built for Grok will run Anthropic's model weeks before the SpaceX IPO; Musk, who spent a year calling Anthropic 'anti-western civilization', is now their landlord.
  • The Modern Market Show reports SpaceX signed Anthropic's biggest single data-center compute deal (300 MW, 220,000 Nvidia GPUs), doubling Claude Code's five-hour rate limits for Pro, Max, Team and seat-based enterprise plans; markets moved with SpaceX up ~11% to $1.8T on Ventuals and Anthropic up 6.5%.
Source evidence

elon built colossus 1 to make grok beat claude.

today anthropic leased the entire cluster. all 220,000 gpus. 300mw.

same afternoon, elon dissolved xai as a standalone company and folded it into spacex.

so the flagship ai supercomputer built for elon's chatbot is now running his biggest competitor's model. weeks before the spacex ipo.

the guy who spent a year calling anthropic anti-western civilization is now their landlord.

The Modern Market Show (@modernmarket_)

SpaceX just signed Anthropic's biggest single data center compute deal.

"They are doubling Claude Code's five-hour rate limits for Pro, Max, Team, as well as the seat-based enterprise plans."

300 megawatts. 220,000 Nvidia GPUs at Colossus One.

SpaceX ripped 11% to $1.8T on @ventuals. Anthropic up 6.5% on the same news.

Video

— https://nitter.net/modernmarket_/status/2052426324958912649#m