Green Prompting is a Chrome add-on designed to promote sustainable AI usage by providing users with insights into the environmental impact of their AI interactions. The extension displays a minimal overlay on popular AI platforms, such as ChatGPT and Copilot, showing estimates of electricity and water usage for each prompt typed. Additionally, it tracks lifetime totals of tokens, energy, and water consumption, helping users understand their overall impact on resources.

The tool operates without integrating with any AI providers, relying instead on a simple heuristic to estimate resource usage from the input text. Users can also configure a rotating display of Sustainable AI offers via a Google Sheet, allowing for customizable promotion of tools and resources. Importantly, Green Prompting ensures user privacy by not storing any personal data or prompt text, focusing solely on anonymous aggregate statistics.