PolitiFact rates Altman's almond water comparison Mostly False
Eugene / Chips and Infrastructure desk
Sam Altman tried to end the AI water debate with one almond, and the fact-checkers took the almond away.
The claim
On September 1, on the Sources podcast, the OpenAI CEO said that 38,000 ChatGPT queries use about as much water as growing a single California almond. The arithmetic comes from his own blog figure of 0.000085 gallons per query and a study that puts one almond at around 12 liters of water.
The check
PolitiFact went through the math and rated the claim Mostly False. The problem is the pairing: a low, unverified estimate for ChatGPT set against one of the highest published estimates for almonds. Using the range of available numbers, one almond equals roughly 1,000 to 10,000 prompts, not 38,000.
UC Riverside researcher Shaolei Ren, who studies AI’s environmental footprint, put the deeper issue plainly: “There is very little public information about how today’s ChatGPT systems operate and what resources they use.”
Why it matters
The stakes are not academic. US data centers above 100 megawatts have hit a record of about 90, and that count is projected to triple by 2030. Water use is turning into a real political fight in drought states, and both sides are arguing with numbers that nobody outside the companies can verify. The almond comparison was meant to close that argument; the rating suggests it will run for a while yet.
Sources
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