Open WebUI

Open WebUI. Docs checked 2026-10-12.

Self-hosted chat UI. Connects to Ollama and any OpenAI-compatible server.

What it’s for

Browser chat, optional RAG, multi-user. Not an agent loop unless you add tools.

Local endpoint

llama-server base: http://127.0.0.1:8080/v1
Strata base: http://127.0.0.1:8083/v1
Model name: Models appear after you add the connection
API key: Connection field; placeholder if unused

Tool calling

Optional tools / pipelines. Default is chat.

Long context

Server -c. UI does not replace the server window.

ROCm / Radeon gotchas

If Open WebUI runs in Docker, use host.docker.internal. Do not point it at a CUDA Ollama blob.

Hybrid local + cloud

Yes — local + cloud connections in one UI.

This is the same question as the calculator’sfully localversushybridtoggle. This page does not quote cloud prices.

Official links

Sources

Open WebUI — LM Studio / OpenAI-compatible connection

Copy-paste

More on the connect page. Prove http://127.0.0.1:8080/v1/models first.

Open WebUI → llama-server :8080

Admin → Settings → Connections
  URL: http://127.0.0.1:8080/v1
  API Key: local-not-a-secret
# Docs show the same pattern with LM Studio at http://localhost:1234/v1.
# Docker: use host.docker.internal, not 127.0.0.1.

Exact llama-server flags for our daily driver stay TODO in stacks.yaml. This is the port only.

Open WebUI → Strata :8083

Admin → Settings → Connections
  URL: http://127.0.0.1:8083/v1
  API Key: local-not-a-secret
# Docs show the same pattern with LM Studio at http://localhost:1234/v1.
# Docker: use host.docker.internal, not 127.0.0.1.

Exact Strata flags for our rig stay TODO in stacks.yaml. This is the port only.