Deep Research in Gemini now allows users to select sources which can be a combination of Search, Drive, Gmail, and Chat.
Deep Research is now able to use your emails, all the Slides, Docs, Sheets and PDFs in your Drive, as well your chat history ...
Google Gemini’s Deep Research can now analyze your Gmail, Drive, and Chats to deliver personalized research reports.
Google has confirmed its revered research tool NotebookLM will be able to process data from spreadsheets very soon.