Between 0.26 mL and 45 mL per question, depending on what is counted: Google counts the cooling water of its data centres, while Mistral AI's life cycle assessment covers a response of about 320 words. Worldwide, data centres consume about 560 billion litres of water a year according to the International Energy Agency, whether or not they serve AI, and two thirds of it is used to generate their electricity.
Read the source article: Environmental impact of AI: climate, energy, water, metals