About LowRouter

LowRouter is made by Carbonifer, a French company based in Nantes, founded by Olivier Bierlaire and Yorly Orellanos.

We built it to answer a question we kept running into as engineers: what does this software actually cost the planet? Not in the abstract — for this request, right now. AI is quietly becoming one of the biggest energy sinks in software, and almost nobody puts a number on it.

LowRouter sits between your application and the AI providers. Your requests go through us, we pass them to the right model, and we tell you things nobody else does along the way:

• Environment. Every response reports the energy the request used and the CO₂ it likely produced. Estimates, clearly labelled as such — how we calculate them is public, so you can check our math rather than take our word.
• Sovereignty. Most services sell you a brand name and hide who actually ran your request, and where. We name the provider and the region every time, and you can keep your traffic inside a jurisdiction you trust. We’re European ourselves, and it matters: we sit outside the US CLOUD Act and inside GDPR and the AI Act — which, for many of our customers, is not a preference. It’s a requirement they have to meet.
• Privacy. We see every prompt and every answer. We don’t mine that. It passes through, gets counted, and that’s it.

We apply the same standard to ourselves: LowRouter runs on open-source technologies and mostly* European services, hosted at Scaleway, in France.

* Mostly, because a few pieces aren’t European yet — Stripe handles our payments, for instance. They operate under European jurisdiction, and we’re committed to replacing them with European alternatives as credible ones emerge. Baby steps, honestly taken.

LowRouter is a paid service, plain and simple. You buy credits, you spend them on requests, and that’s how we keep the lights on — not by doing something else with your data. The pricing is public, like everything else here.

We’re in invite-only beta. The docs, the dashboard, and the way we measure carbon are all public — deliberately. Look first, trust after.

Questions? Get in touch