Gemini Notebook Sources Can Now Ground AI Prompts in Google Docs
Google announced on September 23, 2026 that Gemini in Google Docs can now pull context directly from a user’s Gemini Notebook (the product formerly known as NotebookLM), letting AI-drafted text be grounded in a specific, curated set of sources instead of general model knowledge alone.
Details
- How it works: typing ”@” in the Gemini side panel or bottom bar inside a Google Doc lets a user select an existing Notebook as a source; Gemini then grounds its output in that notebook’s material and adds inline citations back to the original documents
- Why it matters: instead of copying content between apps or relying on general-purpose answers, users can write directly from libraries they’ve already organized in Gemini Notebook, with a traceable path back to the source
- Who it’s aimed at: Google highlights business analysts building market reports, legal and compliance teams working across large document sets, content strategists writing whitepapers, and executive assistants drafting proposals from meeting notes
- Availability: rolling out now to both Rapid Release and Scheduled Release Google Workspace domains
- Eligible editions: Business Standard and Plus, Enterprise Standard and Plus, Education Plus, Google AI Pro and Ultra (consumer), Google AI Pro for Education, and AI Expanded Access
- Admin controls: enabled by default wherever Gemini for Workspace in Drive is already turned on; admins can manage access through Workspace Intelligence controls in the Admin console, and users need Workspace smart features enabled
What happened next
The update lands just a day after Google expanded a separate Gemini Notebook feature — adaptive-learning “study notebooks” — to Workspace accounts on September 22, part of a broader pattern this month of stitching Gemini Notebook’s source libraries into other Google surfaces rather than keeping it a standalone research tool. For teams that already maintain curated notebooks, the Docs integration removes a manual copy-paste step and gives drafted content a built-in citation trail back to its sources.