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TechRadar

Ross Kelly

xAI’s Colossus supercomputer cluster uses 100,000 Nvidia Hopper GPUs — and it was all made possible using Nvidia’s Spectrum-X Ethernet networking platform

Nvidia United States XAI Grok

Nvidia H100.

Nvidia and xAI collaborate on Colossus development
xAI has markedly cut down 'flow collisions' during AI model training
Spectrum-X has been crucial in training the Grok AI model family

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