Massive AI Infrastructure Expansion
Elon Musk's xAI plans massive expansion to reach 1.21 million chips by year-end.
Anonymous
Elon Musk says xAI’s Colossus 2 data center near Memphis currently has 110,000 Nvidia GB200 chips and 440,000 GB300s. Planned additions of 220,000 GB300s expected next week, another 220,000 in November and a possible further 220,000 in December could bring the cluster to about 1.21 million chips by year-end if the schedule holds. The expansion depends on major power, cooling and networking infrastructure. Colossus 2 relies partly on temporary gas turbines that have drawn environmental and regulatory scrutiny, while a permanent 1.2-gigawatt gas-fired plant is planned in Mississippi. Reports also say Google and Anthropic have secured computing capacity in the wider data-center complex.
Key Points
1
Musk said the 110,000-chip increments reflect how many fiber-optic cables can connect to a central switch, making networking capacity one constraint on scaling Colossus 2.
2
Nvidia’s GB300 NVL72 rack connects 72 GPUs using liquid cooling and can draw up to 142 kilowatts, illustrating the power and cooling demands of adding large numbers of processors.
3
Google’s reported compute deal is specified as a contract for about 110,000 GPUs at $920 million per month, running from October 2026 through June 2029.
4
The original Colossus facility has more than 200,000 Nvidia chips and powers the technology behind xAI’s Grok chatbot.
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