彭博社报导，马斯克在 2025 年 12 月 31 日发文称，xAI 为扩建其位于孟菲斯的大型资料中心群「Colossus」，在当地购买了第三栋建筑，并表示这将把 AI 训练算力提升到「接近 2GW（2 吉瓦）」。报导指出，新建物位于密西西比州 Southaven，紧邻正在兴建的「Colossus 2」。

马斯克写道第三栋楼名为「MACROHARDRR」。文中并以耗电量作为规模指标：1 吉瓦约足以供电给 75 万户美国家庭，因此接近 2 吉瓦意味著接近两倍于 1 吉瓦的用电规模，凸显其训练基础设施正快速扩张。

他先前还提到 Colossus 2 最终将配备 55 万颗辉达晶片，成本可能达数百亿美元。为支应扩建与晶片采购，xAI 在 2025 年积极募资；彭博此前称其曾洽谈筹集 200 亿美元（含债务与股权）。xAI 未回应《The Information》的询问。

Bloomberg reports that Elon Musk’s xAI is expanding its Memphis “Colossus” AI data-center complex and has bought a third nearby building, which Musk said would lift training compute to almost 2 gigawatts. The new site is in Southaven, Mississippi, adjoining the under-construction “Colossus 2,” according to The Information and property records.

Musk posted that the third building is called “MACROHARDRR” and framed scale in power terms: 1 gigawatt can supply electricity for roughly 750,000 US homes. Moving toward ~2GW implies a massive step-up in power draw and, by proxy, compute capacity, consistent with his stated ambition to build the world’s largest AI-training data center.

On the hardware and financing side, Musk has said Colossus 2 could eventually house 550,000 Nvidia chips, costing “tens of billions of dollars.” Bloomberg previously reported xAI was in talks to raise $20 billion in combined debt and equity in 2025, partly to purchase Nvidia processors. The company did not comment on The Information’s report.