Stanford's Joules-to-GDP measures the economic value AI produces per joule of energy

rohanpaul_ai · x · 2026-11-06

Stanford, UC Berkeley and UT Austin researchers introduce Joules-to-GDP (J2G), a framework measuring net dollar value per joule of AI energy use, tested on 220 GDPval tasks across 44 occupations with 5 open models. Key findings: CAD design earns 10% more per task than web building but 27% less per joule; GLM 5.2 delivers the top net value ($72.27/task) while Gemma 4 31B hits 56% of it with 23% of the energy (2.5x NVJ); scaling one H100 to eight cuts task time only 22% while using 3.2x the energy; and against experts who themselves use AI, GLM 5.2's NVJ drops 70%. Code and dataset are open-sourced.

Related event: Stanford's Joules-to-GDP Framework Measures AI's Economic Return per Joule(10 posts)→

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