Deep Research finds the sources, but you can pick what to keep or even direct it to specific sites as it builds your report.

FastSearch powers AI Overviews – a faster, lighter version of Search built for speed over depth. Here’s how it changes what gets seen.

As for the additional support for more file types, you can now upload Google Sheets, Drive files as URLs, PDFs from Google ...

Google is adding Deep Research and more file types to NotebookLM. Google is pairing up two of its research products: ...

Fast research: Like the name suggests, choose this option for a quick search to discover sources. Deep research: If you want a full, in-depth briefing and analysis, choose Deep Research. It'll take ...

Following last week’s big mobile update, NotebookLM is back with Deep Research and Microsoft Word support. NotebookLM is adding its own Deep Research capability to “automate and simplify complex ...

NotebookLM receives a major upgrade that adds Deep Research support, rebrands Discover sources as Fast Research, and adds Word doc support.