Connect SillyTavern to OpenLux
SillyTavern supports OpenAI-compatible connections with a custom endpoint. Set that endpoint to OpenLux and character chats run on Claude Opus 5, GPT-6 Astra, Claude Fable 5.1 or any other text model in the catalogue.

Set it up in four steps
Create an OpenLux key
Generate the key in the console. One key covers every text model, so trying a different persona model costs nothing extra to set up.
Add the connection
In the API Connections panel choose Chat Completion, then OpenAI, and enable the custom endpoint option.
Set the endpoint and key
Enter the OpenLux base URL as the proxy endpoint, paste your key, then click Connect to load the model list.
Pick a model per character
Chats keep their own model selection, so long-form writing can use a different tier than quick conversations.
Configuration
Copy these blocks, replace the placeholder key and you are done.
API Connections → Chat Completion → OpenAI
Custom Endpoint: enabled
Endpoint: https://openlux.lol/v1
Model: claude-opus-5
Available: gpt-6-astra, claude-fable-5-1, gemini-3.1-pro-preview, deepseek-v4config.yaml (reverse proxy alternative)
openai:
reverse_proxy: https://openlux.lol/v1
proxy_password: sk-openlux-...Models that fit SillyTavern
Claude Opus 5
Anthropic · $0.4412 / 1M tokens
GPT-6 Astra
OpenAI · $0.3677 / 1M tokens
Claude Fable 5.1
Anthropic · $1.765 / 1M tokens
Gemini 3.1 Pro (preview)
Google · $0.1471 / 1M tokens
The full list is in the model catalogue and the use-case collections.
SillyTavern + OpenLux questions
Does SillyTavern work with OpenAI-compatible gateways?
Yes. Enable the custom endpoint on the OpenAI connection and SillyTavern sends its chat-completion requests there instead of to OpenAI directly.
Which model fits long roleplay sessions?
Claude Opus 5 and Claude Fable 5.1 are the strongest for long, character-consistent writing; Gemini 3.1 Pro and DeepSeek V4 keep long sessions affordable.
Do prompts train on my data?
OpenLux is a pass-through gateway: requests go to the upstream model provider under its policy. There is no separate OpenLux training on your conversations, and prompts are not stored as content.
Can I switch models mid-session?
Yes. Change the model in the connection settings — the conversation continues, only the backend model changes, and cost updates per token.
Connect SillyTavern to OpenLux today
One key covers every model in this guide and the rest of the catalogue, metered in USD with free trial credit to start.