We have a strong emphasis on the retrieval half of RAG. A big part of the value of Danswer is in connecting to sources like Notion, Linear, GitLabs, etc. We do incremental updates to keep data fresh, pull in metadata, etc. We also have features to manage access to documents in Danswer like RBAC.
Basically, (as I understand it) OpenWebUI is more like a ChatGPT frontend and we're more like a unified search with an emphasis on LLMs.