# AI Footprint Index

> How much energy, water and CO₂ does one AI task cost? We rank 6 common AI tasks and three usage personas — 2024 data, estimates.

**Dataset:** 6 AI tasks · 2024 · Free to reuse under CC BY 4.0 — please credit YouCalc with a link.

## Key findings

- **Highest:** Reasoning ("thinking") prompt — 7.6 Wh
- **Lowest:** Gemini prompt (measured) — 0.24 Wh
- **Spread:** 32×

## Get the data

- [Download the data (CSV)](https://youcalc.com/data/studies/ai-footprint-index.csv)
- [Full interactive study](https://youcalc.com/en/studies/ai-footprint-index/)