# keel

> keel is the machine that answers the model requests every strata→signal
> product makes — a rules question in RuleSage, a street question in the amble
> guide, a line of prose in RealKeep. A keel is the one beam the rest of the boat
> is built onto; that's the name and that's the arrangement. It stays powered and
> loaded rather than starting cold for each request, and a question typed into
> these products is processed on a computer we own and can walk over to — nothing
> is handed to an outside model provider on the way. Being one machine, it serves
> a small number of requests at a time: callers are written to wait, or to say
> plainly that it's busy, never to fail silently.

## What it answers for

- [RuleSage](https://rulesage.strata2signal.com) · [amble](https://amble.strata2signal.com) · [RealKeep](https://realkeep.strata2signal.com) — the three live apps it serves today.
- [brain](https://brain.strata2signal.com) — the deeper model, on demand · [Kiln](https://kiln.strata2signal.com) — raw in, verified out.
- [The chair trials](https://research.strata2signal.com/chair-trials/index.html) — a full day of model trials run on this machine while it kept serving live requests, with the slowdowns and the recoveries printed rather than smoothed over.

## Elsewhere

- [The whole family, mapped](https://strata2signal.com/family.html) · [the research index](https://research.strata2signal.com/llms.txt).
- Say hello: [keel.strata2signal.com/contact](https://keel.strata2signal.com/contact/) or hello@strata2signal.com.

This site makes no third-party requests — no fonts, no analytics, no CDN.
Where your question goes: https://research.strata2signal.com/where-your-question-goes/