v0.1 - phase 1

See the carbon cost of your AI usage.

A Chrome extension watches your chats with Claude and ChatGPT, estimates the energy and CO₂, and shows you what it equals in microwave minutes, phone charges, or Google searches. Everything stays on your device by default.

Estimates, never claims

Token-to-Wh coefficients from peer-reviewed research. Always shown with a confidence range.

Local-first

Your queries never leave your device unless you opt in. No PII collected. COPPA-aware.

Action, not guilt

Coach suggests downgrading to a smaller model when your prompt does not need a frontier one.