Any AI app similar to Google NotebookLM? (eg give it data, ask questions about the data)

Someone mentioned an app similar to https://notebooklm.google/ where you can feed the app markdown files from Obsidian and bookmarked links and ask an AI agent questions about it.

Does anyone have recommendations or experience with this type of app? There appears to be quite a few for the Mac, but it's not clear which ones are any good. Slight preference Requirement to using it offline without the cloud.

 

My use case is I've got many bookmarks and text files (in the thousands) on a few topics and would like to be able to summarize and ask questions about the information in these bookmarks/files.

 

Edit:

  • Notion
  • PDF Pals
  • Perplexity Spaces
  • Reor
  • Elephas - document processing is cloud only
  • https://Fabric.so
  • saner.ai
  • NotebookLM