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Energy use in AI responses
发布:2026-05-28
· 事件:2026-05-28
Subjects Energy infrastructure Energy modelling Access through your institution Buy or subscribe Understanding the energy used each time artificial intelligence (AI) systems generate a response is inc...
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Energy infrastructure
Energy modelling
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Understanding the energy used each time artificial intelligence (AI) systems generate a response is increasingly important for energy policy and grid planning. However, many estimates are based on non-production or small-scale settings that do not reflect how AI systems operate in real data centres, leading to systematic overestimation of real-world energy use. Now, Felipe Oviedo and colleagues at Microsoft report a bottom-up method that estimates energy use by adding up the main parts of the system, such as computing speed, hardware power use, and data centre overheads under realistic serving conditions.
The researchers estimate an energy use of 0.31 Wh per query by modelling the performance of three open-source AI models that were on a similar scale to widely-used commercial chatbots. The approach also separates simple queries from longer queries, such as those used for programming and agentic models, showing that these longer queries require nearly 13 times more energy per query. Oviedo and colleagues also examined efficiency improvements reported in earlier research, including better hardware and more efficient inference methods and showed potential energy usage reductions of up to a factor of 20. However, they note that such reductions may be partially offset if improvements lead to greater usage or more compute-intensive applications.
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Nature Reviews Clean Technology
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Matthew Allinson
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Matthew Allinson
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Allinson, M. Energy use in AI responses.
Nat Energy
11
, 650 (2026). https://doi.org/10.1038/s41560-026-02084-9
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Published
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27 May 2026
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27 May 2026
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May 2026
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https://doi.org/10.1038/s41560-026-02084-9
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