Description
The extension uses the length of your messages and ChatGPTβs replies to estimate energy usage based on GPT-5 characteristics. The results are estimates, not guarantees, but give you a sens e of your AI footprint. It runs securely in your browser and never sends your data anywhere.
π± Features
- Estimates ChatGPT energy use from text length
- Works locally: no data leaves your browser
- Helps you understand your environmental impact
ποΈ Limitations (for now):
- Chrome only (support for other browsers coming)
- ChatGPT only
- Estimation accuracy is a work in progress
AI tools may be βfree,β but they have real environmental costs.
---
Built and open-sourced by Simon Zilinskas-Inta, contributions welcome
Reviews
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Permissions (1)
Permissions
storageβΉ Can store data locally in your browser
Details
| Version | 2.4 |
| Updated | Feb 20, 2026 |
| Size | 77.71KiB |
| First Seen | Mar 28, 2026 |
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