Setup
Point Jan at Tium
You need the base URL https://api.tium.ai/v1 and an API key from your dashboard. Keys are shown once at creation.
1.Add a provider
Go to Settings, then Model Providers, and click Add Provider next to the provider list.
Settings > Model Providers > Add ProviderProvider Name Tium API Format OpenAI-compatible Base URL https://api.tium.ai/v1 API Key sk-tium-...2.Choose the OpenAI-compatible format and fill these in
OpenAI-compatible is the default API format in the dialog and is the right one here.
Worth knowing
What Jan gets wrong
Tool-specific behaviour that surprises people, and what to do about it.
The base URL must keep its /v1
Jan's own docs call this out as the common mistake, and it is the one that produces a 404 with a perfectly valid key. The version segment belongs to the base URL; Jan appends the route to it and nothing else.