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The One Token Model: A Multi-Layer Framework for the Granular Estimation of AI Inference Energy

Mathieu Francois · CERN

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The integration of Large Language Models (LLMs) into research workflows introduces a largely opaque layer of carbon intensity. Existing approaches to estimating AI energy consumption rely on time-based heuristics or static hardware profiling, which fail to capture the non-deterministic nature of generative inference. Variations in prompt design, quantization, and decoding strategies can lead to significant fluctuations in energy use, limiting the effectiveness of current sustainability assessments.

This paper introduces the One Token Model (OTM), a unified framework that redefines energy measurement through output-normalized attribution, expressed as Joules per token. OTM integrates telemetry across three layers: infrastructure dynamics, model architecture, and inference behavior.

We validate OTM through a real-time monitoring system that quantifies the marginal energy cost of individual inference requests. By enabling fine-grained, comparable measurements across systems, OTM supports energy-aware optimization and promotes more sustainable, transparent research computing practices.

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The talk

  1. The One Token Model: A Multi-Layer Framework for the Granular Estimation of AI Inference Energy 2026-05-07 · 30 min · CERN's player

Credits and licence

Institution
CERN
Speaker
Mathieu Francois
Year
2026
Language
English
Subjects
Mathematics
Source
CERN
Licence
CERN, as CERN states it. CERN's terms
Attribution
© CERN. CERN provides its audiovisual media free of charge for educational and informational use, credited to CERN; this lecture is shown in CERN's own player.
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