Combining Gemini Notebook and Gemini for cross-notebook queries
The author connected Gemini Notebook with Gemini to ask questions across four separate research notebooks in one chat. This works around the limitation that each notebook is isolated and can only use the sources supplied to it. The setup lets users cross-reference material from different notebooks without manually merging their documents.
Google renamed NotebookLM as Gemini Notebook in July 2026. The tool answers using only user-supplied PDFs, Docs, or notes, and it avoids outside material or speculative filling. This source-bound design supports traceability, but separate notebooks cannot directly consult one another.
Gemini can attach several Gemini Notebook notebooks to one conversation. On the web, users select the plus icon, choose Gemini Notebook, pick multiple notebooks, and add them; mobile users use the attachment icon. The author used this to query four research notebooks together, preserving focused notebooks while cross-referencing their contents.
Researchers, students, and knowledge workers who keep separate source collections could benefit from asking one chat to compare material across notebooks, potentially reducing manual document merging. Teams with scattered project files may find cross-referencing easier, though reliance on a single assistant could concentrate workflows around one platform. Users may still need to check that answers remain tied to the supplied sources, especially when notebooks cover different topics or formats.