# Ground AI prompts in Google Docs on existing sources from Gemini Notebook

> Source: <http://workspaceupdates.googleblog.com/2026/09/ground-ai-prompts-in-google-docs-on-existing-sources-from-Gemini-Notebook.html>
> Published: 2026-09-23 18:26:49+00:00

We are introducing the ability to use Gemini Notebook as a context source in Google Docs. Building on our Workspace Intelligence foundation, this feature bridges the gap between deep research and content creation by grounding your drafts in a curated knowledge base – all without the need to switch tabs or copy-paste between tools.

If you’ve organized research in Gemini Notebook, you can now seamlessly tap into that library right where you write in Google Docs. Whether you're drafting a project proposal or a technical whitepaper, simply type "@" in the side panel or bottom bar to reference an existing Notebook. Gemini will ground its output in your sources and provide inline citations, making it easy to verify facts while staying in the flow of your work.