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The real energy use of agentic AI

Zeke Hausfather · 5 Aug 2026 · theclimatebrink.com ↗

3 korrents from this piece

Zeke Hausfather did not write this page.

Every claim below was made in this piece, quoted word for word and numbered in the order the piece makes them, so you can read it there rather than take our word for it. The sentence above each quote is our reading of the claim, not their wording. Each quote was checked against a stored copy of the page at build time; where the two differ, the quote is the fact.

  1. Our reading

    Making AI compute cheaper per token drives enough extra usage that total AI energy consumption rises rather than falls (a Jevons paradox effect).

    Their wordsThis is the Jevons paradox in action: making compute cheaper per token in turn tends to lead to greater levels of AI use.

  2. Our reading

    The carbon intensity of the electricity grid, not compute efficiency, is the lever that matters most for AI's climate impact.

    Their wordsWhich is why the lever that actually matters most is the carbon intensity of the electricity.

  3. Our reading

    AI's energy use is an easier end-use to decarbonize than aviation.

    Their wordsUnlike aviation, this is an end-use we already know how to decarbonize.