Google is adding two of its research products: NotebookLM and Gemini’s agentic AI tool Deep Research. On Thursday, the company announced that all users will have access to Deep Research in NotebookLM within a week.
Now, NotebookLM users will be able to direct a query for Deep Research and choose between two research styles: fast or deep. Google says the fast research style will look for information “fast”, while the deep style will perform “thorough analysis to find high-quality sources”. Users will receive a research plan before starting research using any style.
If you choose to go deeper into in-depth research, you’ll be able to add more sources while the report is being generated in the background. Google’s blog says this will “help you gather a rich knowledge base on any topic without leaving your workflow.” The final report on the topic will include citations from relevant articles, websites or papers, which you can keep in your notebook.
In addition to deep research, NotebookLM is expanding to work with many new file types. You can now link Google Sheets and query statistics based on structured data, or you can add Drive files like PDFs via URL links instead of uploading directly to NotebookLM. Google will now also let users add Microsoft Word files in .docx format to NotebookLM.