# Chat

The chat widget can currently only be used in combination with [RAG](https://docs.heisenware.com/app-builder/build-backend/functions-library/extensions/rag-ai) to chat with uploaded documents and other knowledge sources.

{% hint style="info" %}
**This features is currently in beta phase.**

Please [reach out to us](mailto:support@heisenware.com) if you want to use it. We are happy to help!
{% endhint %}