Open WebUI Integration

Name: ANT
Author: Antbase

Connect Open WebUI to Antbase for a self-hosted ChatGPT alternative with intelligent model routing. All Antbase virtual models appear in the model selector, and every conversation gets automatic failover across 30+ providers.

What this enables

Full ChatGPT-like UI with Antbase as the backend
All virtual models available in the model dropdown
Multi-user support with shared Antbase credentials
Conversation history, file uploads, and web search built in

Quick Start

1. Run Open WebUI with Docker

docker run -d \
  -p 3000:8080 \
  -e OPENAI_API_BASE_URLS="https://antbase.ai/v1" \
  -e OPENAI_API_KEYS="your-ant-api-key" \
  -v open-webui:/app/backend/data \
  --name open-webui \
  ghcr.io/open-webui/open-webui:main

2. Open the UI

Navigate to http://localhost:3000 and create an admin account. All Antbase models will appear in the model selector automatically.

Ready to chat

Select ant:auto from the model dropdown and start chatting.

Configuration

Admin Settings (UI)

You can also configure Antbase through the admin panel:

Go to Admin Panel > Settings > Connections
Under OpenAI API, set the URL to https://antbase.ai/v1
Enter your Antbase API key
Click the refresh button to load available models

Docker Compose

# docker-compose.yml
version: '3'
services:
  open-webui:
    image: ghcr.io/open-webui/open-webui:main
    ports:
      - "3000:8080"
    environment:
      - OPENAI_API_BASE_URLS=https://antbase.ai/v1
      - OPENAI_API_KEYS=your-ant-api-key
      - DEFAULT_MODELS=ant:auto
    volumes:
      - open-webui:/app/backend/data

volumes:
  open-webui:

Usage Examples

Set a default model

In Admin > Settings > Interface, set the default model to ant:auto so new conversations start with intelligent routing.

Model presets for users

Create model presets with different system prompts and assign them virtual models:

Quick Chat -- ant:fast for casual questions
Deep Analysis -- ant:reasoning for research tasks
Code Helper -- ant:coder for programming assistance

Virtual Models

Model	Best for	Notes
ant:auto	General use	Recommended default for all users
ant:fast	Quick questions	Snappy responses for casual chat
ant:best	Complex tasks	Frontier models for demanding prompts
ant:free	Testing	Zero cost for evaluation
ant:reasoning	Research, analysis	Deep reasoning with chain-of-thought
ant:coder	Programming	Code-optimized models

See Virtual Models for the full list.

Troubleshooting

No models showing up

Click the refresh icon next to the OpenAI connection in admin settings. Verify the URL includes /v1 at the end.

Connection refused in Docker

If running Antbase locally, use host.docker.internal instead of localhost in the base URL.