LLM cost of Energy
One 5-second AI clip burns more power than an hour of microwaving.
MIT Technology Review did the math on AI and energy. Making one five-second AI video took about 3.4 million joules of electricity. One 5-second AI video uses about as much power as running a microwave for over an hour. A high-quality AI image, by comparison, takes about 4,402 joules.
The same estimate puts a session of 15 questions, 10 images and three short AI videos at about 2.9 kilowatt-hours. The data centers behind AI cartoons, fake photos and clips still draw much of their electricity from fossil fuels. In the US, coal and gas make up just under 60% of the power supply. Google says a typical text prompt to its Gemini AI uses only 0.24 watt-hours. OpenAI puts an average ChatGPT prompt at 0.34 watt-hours.
Sources: MIT Technology Review, International Energy Agency
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