Point Open WebUI 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.Open the connections admin
Go to Settings, then Admin, then Connections, and find the Manage OpenAI API Connections list. Click the + Add Connection button.
Settings > Admin > ConnectionsURL https://api.tium.ai/v1 API Key sk-tium-... Model IDs (Filter) leave empty2.Fill in the URL and API Key, then Save
The URL field suggests known providers as you type; ignore the suggestions and paste the base URL above.
What Open WebUI gets wrong
Tool-specific behaviour that surprises people, and what to do about it.
Leave Model IDs (Filter) empty
That allowlist exists for providers with no /models endpoint. We serve an authenticated GET /v1/models, so Open WebUI discovers the catalog by itself, and anything typed into the filter becomes a second list to keep in sync with ours.
Running Open WebUI in Docker changes nothing here
The localhost-to-host.docker.internal substitution in their docs applies to a model server on your own machine. Tium is a public hostname and is reached the same way from inside a container as outside it.