How much water does xAI's Grok use?

xAI is the speed-run version of the data center story: the Colossus cluster in Memphis went from empty industrial shell to hundreds of thousands of GPUs in months, fast enough that power came partly from on-site gas turbines while grid connections caught up.

xAI publishes no environmental reporting, so the public record is local: utility filings and Memphis journalism put the site's water demand on the order of a million gallons per day, in a city whose drinking water comes from the Memphis Sand aquifer. A planned greywater recycling facility is meant to reduce the potable share; whether and when it does is exactly the kind of fact local reporting tracks and ESG reports don't.

Grok itself has no published per-query figures; we class it as frontier. The honest summary: per prompt, Grok is probably ordinary. As a neighbor, Colossus is the most-watched data center in America.2,3,1