🌱 We've just released version 0.5 of the carbon.txt syntax, with support for AI model cards! 🌱

✨️ BETA
This is a new tool that we have built as part of our exploration into using carbon.txt for surface AI sustainability data. It is under development.

Have ideas? Have feedback? Let us know!

AI Model Sustainability Directory

Using the carbon.txt syntax and validator, we have extracted the sustainability data from over 2500 AI model cards from Hugging Face that are listed with co2_eq_emissions metadata.

Results

Data updated on 2026-03-30

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