How Much Energy Does AI Use? The Real 2026 Numbers
How much energy does AI use? A single normal text prompt uses roughly 0.24 watt-hours, Google’s official figure for a median Gemini prompt, to about 0.34 watt-hours for an average ChatGPT query. That is about what an oven uses in one second. The model you pick changes everything. An independent 2025 benchmark put Claude Sonnet at roughly 2.8 Wh for a medium prompt, DeepSeek-V3 near 2 Wh for a medium prompt, and DeepSeek-R1 reasoning at about 29 Wh, the same heavyweight tier as GPT-5-class models. Credible per-prompt estimates span more than 65x. At scale the picture is enormous, with global data centers consuming about 415 terawatt-hours of electricity in 2024 […]
