slim variant). You bring the model key: Vertra Cloud does not host a model.
What it creates
One app (image), plus a managed Postgres database if you choose it for storage.What the wizard asks
First steps
1
Sign in
Open the address and sign in with the administrator email and password you typed. The password only creates the account while no user exists; afterwards change it in Profile > Password.
2
Chat
The provider’s models appear in the selector at the top of the chat.
3
Invite the team
Open sign-up is off. Create accounts in Admin panel > Users > Add.
4
Add or switch providers
In Admin settings > Connections add any OpenAI-compatible API (OpenRouter, Anthropic and Gemini through their compatible routes, or your own server).
Variables
Limits and good practice
- The
slimvariant has no local embeddings model: semantic-search retrieval is not available and attached files go whole into the model’s context. Use small files or long-context models. - With SQLite the data is
/app/data/webui.db, part of the app’s snapshots. With Postgres it lives in the stack’s database. - Zero-downtime deploy is off; a rollback returns with the data.
- Memory: 512 MB is the minimum (about 300 MiB in use); 1 GB gives room for attachments and several people.
Common problems
- No model shows up. The key or the address is wrong: check Connections and the
OPENAI_API_*variables. - I cannot create an account. Open sign-up is off on purpose; ask the administrator.