# Philosophy

LowRouter exists because running an application on top of large language
models forces choices that are usually invisible: which provider serves
the request, where their hardware sits, what the request actually costs
in energy and carbon, and what happens when one provider goes down.

These four pages set out the position we take on those choices. They
are not marketing copy. They describe what we measure, what we choose
not to measure, and why those decisions sometimes lead us to slower,
narrower, or more expensive defaults than the rest of the market.

- [Why LowRouter exists](why-lowrouter)
- [Sustainability-first](sustainability-first)
- [Sovereignty and transparency](sovereignty-and-transparency)
- [Principles in practice](principles-in-practice)