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Data Center
xAI Colossus
100,000 GPUs in 122 days: the build that reset the industry's clock.
xAI converted a former Electrolux appliance factory in Memphis into the world's most famous AI supercomputer: roughly 100,000 H100-class GPUs brought online in 122 days in 2024, doubled to ~200,000 within months, running on Spectrum-X Ethernet with Supermicro and Dell systems and Tesla Megapacks buffering power. Dozens of on-site gas turbines bridged the…
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Company
xAI
Elon Musk's lab: Grok models and the fastest data-center build ever seen.
xAI's defining achievement is industrial: Colossus in Memphis went from empty shell to a ~100,000-GPU training cluster in 122 days, then kept doubling, with on-site gas turbines bridging grid delays and a second gigawatt-class campus under way. Merged with X (Twitter) in March 2025, it trains the Grok family and monetizes through X subscriptions and an API.
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