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ChartHardwareOrganisations · % of each indicator
Published on 20 October 2026

Life cycle assessment of Mistral Large 2

Share of compute (training and use) in each indicator

Life cycle assessment of Mistral Large 2

CalculationOther stagesClimate85.5 %14.5 %Water91 %9 %Materials29 %71 %
Source: Mistral AI, Carbone 4 and ADEME, July 2025. projetcelsius.com/en/ai · CC BY 4.0AI Impact, by Projet Celsius

The analysis

  • For climate and water, most of it comes from compute, hence from server electricity.
  • For materials, most of it comes from the manufacture of servers and chips: 61%.
  • This is the first life cycle assessment of a large model published with ADEME, using the AFNOR method.

The figures

  • Climate: compute, 85.5 %.
  • Water: compute, 91 %.
  • Materials: compute, 29 %.

Assumptions

  • Full life cycle of the Mistral Large 2 model, excluding users' devices for the response.
  • A single model, a single provider; the study does not separate training from responses.
  • Shares read from the infographic published by Mistral AI; the full report is not public.
  • The other stages combine server hardware (11% of climate, 61% of materials), users' devices (3% and 7%) and the data centre buildings (less than 1% and 1.5%).

Published on 20 October 2026MethodologyAll sourcesLicence CC BY 4.0

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