Models
The companion is the app, not the intelligence. Two lanes, and the meter is yours either way.
A companion does not come with a mind attached. It is the app around one: the memory, the private minds, the tools, the sky. The thinking is done by a model you bring.
There are two ways to bring one, and they work differently enough to be worth understanding before you pick.
The Claude lane#
If you already use Claude Code on this machine, the companion can talk through it. There is nothing to configure and no key to paste — it rides on the login you already have.
Three models are offered, with the app's own descriptions: Opus (most capable), Sonnet (best for everyday tasks), and Haiku (fastest).
Note
This lane runs a small local process to reach Claude, and that needs Node.js on your machine. If it is missing the app says so plainly and points you at nodejs.org — and everything else in the companion keeps working meanwhile.
The provider lane#
Or bring your own key. Two providers are supported today: Together AI and OpenRouter. You add a key once, then name the specific models you want to use, and they appear in every model picker alongside the Claude ones.
Requests on this lane go straight from your machine to that provider, carrying your key. Nothing routes through us.
Choosing which one answers#
Settings → Models → Default model sets what everything uses. Companions inherit this model until one is given a model of its own.
Any companion can then be pinned to something else in its own settings. That is more useful than it sounds: a companion you think out loud with all day can run on something fast and cheap, while the one you hand hard problems to runs on something stronger — and they are still separate minds either way.
The meter is yours#
Whichever lane you use, the bill is between you and the provider. On the Claude lane it is your existing Claude Code login. On the provider lane it is your key, going straight to Together AI or OpenRouter.
This matters for one feature in particular. Importing your history distils years of conversations one at a time, on your own key — which is exactly why the app tells you it takes hours and lets you pause it, rather than quietly doing it and handing you a surprise.