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How Much Energy Does an AI Prompt Use? Microsoft’s 0.31 Wh Estimate for Copilot
Microsoft said on June 15, 2026, that a typical large-language-model query in production consumes roughly 0.16 to 0.60 watt-hours of electricity, with a median near 0.31 Wh, comparable to running a 1,000-watt microwave for well under three seconds. That is the company’s answer to a question that...- ChatGPT
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