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AI Wattch
Track the carbon footprint of your AI prompts in real time
Every AI prompt consumes energy. Most people have no idea how much. AI Wattch is a free, open-source browser extension that tracks the energy consumption, carbon emissions, and water usage of your ChatGPT, Claude and Gemini conversations — in real time, as you type. Co-Developed by Antarctica and IT Climate Ed, and built on Antarctica's One-Token Methodology, it translates your AI activity into clear, actionable data: energy used, carbon emitted, and efficiency per model and session.
I built AI Wattch because my students and enterprise clients kept asking me the same question: "how much carbon do my AI conversations use?" — and there was no simple answer.
I'm a sustainable IT consultant. I spend my days helping sustainability professionals, large tech companies, governments, and financial institutions measure and reduce their AI carbon footprint. You can find a lot of sometime conflicting information online, but nothing makes it visible at the prompt level, for everyday users.
So I partnered with Antarctica to build it. Free, open source, privacy-first.
AI Wattch got featured at the GreenIO2025 conference in NYC, then in the Green Software Foundation and GreenIO newsletters. Built a real-science based methodology. We shipped v2 with multi-model and multi-browser support.
Now we're ready to bring it to a wider audience — starting with Earth Day 2026.
Would love your feedback on the methodology, the UX, and what models you'd want us to support next.
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About AI Wattch on Product Hunt
“Track the carbon footprint of your AI prompts in real time”
AI Wattch was submitted on Product Hunt and earned 3 upvotes and 1 comments, placing #97 on the daily leaderboard. Every AI prompt consumes energy. Most people have no idea how much. AI Wattch is a free, open-source browser extension that tracks the energy consumption, carbon emissions, and water usage of your ChatGPT, Claude and Gemini conversations — in real time, as you type. Co-Developed by Antarctica and IT Climate Ed, and built on Antarctica's One-Token Methodology, it translates your AI activity into clear, actionable data: energy used, carbon emitted, and efficiency per model and session.
AI Wattch was featured in Chrome Extensions (52.6k followers), Open Source (68.4k followers), GitHub (41.2k followers) and Climate Tech (13k followers) on Product Hunt. Together, these topics include over 45.2k products, making this a competitive space to launch in.
Who hunted AI Wattch?
AI Wattch was hunted by Pascal Joly. A “hunter” on Product Hunt is the community member who submits a product to the platform — uploading the images, the link, and tagging the makers behind it. Hunters typically write the first comment explaining why a product is worth attention, and their followers are notified the moment they post. Around 79% of featured launches on Product Hunt are self-hunted by their makers, but a well-known hunter still acts as a signal of quality to the rest of the community. See the full all-time top hunters leaderboard to discover who is shaping the Product Hunt ecosystem.
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Pascal Joly