AI Data Centre
Definition
A facility filled with servers and specialised chips used to train and run AI models. Most large online AI services do their heavy computing in data centres rather than on your phone or laptop, although some smaller models now run on-device, including inside browsers. AI-focused data centres can use very large amounts of electricity and water, and they are being built rapidly. They are the physical infrastructure behind much of what feels weightless and online.
Why It Matters
It's a reminder that "the cloud" is made of concrete, chips, and power bills. The energy and water these centres use is part of the honest conversation about AI's cost.
What does that look like in practice?
Ask a chatbot a question and the real work happens in an AI data centre, on racks of chips drawing serious power.
What people actually mean when they say this
When people talk about AI 'in the cloud,' the cloud is really an AI data centre: a physical building full of computers and power bills.
Last reviewed: June 2026
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