xAI Built a 670K-GPU Full Stack in Just 3 Years, From Colossus to Grok 4.7

FinanceYF5 · x · 2026-09-29

A rundown of what xAI has assembled in roughly three years: the Colossus 1 and Colossus 2 superclusters totaling around 670,000 GPUs, plus a growing product line including Grok Imagine, Grok Voice, Grok Build, and Grok Bot, with Grok 4.7 as the latest model.

The author argues Grok's goal isn't a fleeting leaderboard top spot but a vertically integrated system combining models, agents, apps, and compute — and the pace is still accelerating.

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