Many models. One sensible decision per prompt.
There are more capable language models than ever, at wildly different prices. Choosing the right one for every request shouldn't need a spreadsheet, a benchmark team or a pile of rules.
Why we built LinuxAir
Teams building on LLMs face the same trade-off every day: pay for a frontier model on every request, or accept weaker answers from a cheaper one. Recent research on model routing showed a better way — measure what each model is good at, then match prompts to models. We turned that into a product anyone can use through the API they already have.
LinuxAir is built by OneBrain AI, a team that builds AI products and business systems for companies worldwide.
What we believe
- Quality comes first. Savings only count when the answer is still right.
- No markup on tokens. You pay providers directly; we charge a transparent platform fee.
- Every decision explained. You can see why each model was chosen.
- Your infrastructure, if you want it. Self-hosting is a first-class option.
- Measured, not asserted. Every routing claim comes from numbers you can see in your own dashboard.
Measure, then decide.
Measure every model
The same set of probe prompts across task types gives each model a comparable profile — no guesswork, no vendor claims.
Protect quality first
A cheaper model is only used when it's predicted to be as good, within the limit you choose.
Keep learning
Your feedback and retries continuously reshape each model's profile for your own prompts.
Stop overpaying for easy prompts.
2,000 free credits on signup. Bring your own keys, change one base URL, and see the savings on your own traffic.