Jan

API: OpenAI API

Open Jan → Settings (gear icon, bottom-left) → Model Providers → OpenAI → set:

Base URL:  https://imbutus.com/v1
API Key:   <your-api-key>

Then add one or more of the following model IDs to the model list under that provider:

To set the context window, go to Settings (gear icon, bottom-left) → Model → Context Length. Model context windows:

You can find your API key on the profile page.