Open WebUI
Self-hosted ChatGPT-style UI with native OpenAI connections.
Open WebUI lets admins add multiple OpenAI-compatible connections. Add FreeTheAi and the model picker auto-fills from /v1/models.
Chat completions Streaming Tool calling
Connect Open WebUI to FreeTheAi.
- 1
Open the admin panel
Sign in as admin, open the Admin Panel, go to `Settings`, then `Connections`.
- 2
Add a new OpenAI connection
Under `OpenAI API`, click the `+` button to add a connection.
- 3
Fill the connection
Use these values.
text OpenAI API Base URL: https://api.freetheai.xyz/v1 OpenAI API Key: PASTE_YOUR_FREETHEAI_KEY - 4
Save and pick a model
Save the connection. The model picker pulls the FreeTheAi catalog automatically.
Models that pair well with Open WebUI.
-
bbg/zai-org/GLM-5.1 -
bbg/moonshotai/Kimi-K2.6 -
rev/claude-sonnet-4.5
See the full live catalog at /models. Aliases are stable; pricing on the free tier stays $0.
Common gotchas.
- FreeTheAi can return thousands of `fth/` aliases on broader keys. Use Open WebUI's model filter or pick a curated key if the dropdown gets noisy.
- Open WebUI also has a separate Ollama connection list. Make sure you add to OpenAI API, not Ollama.