Google syncs NotebookLM and Gemini notebooks across apps

What shipped

Gemini added "Notebooks" as a first-class feature inside the Gemini app. The new experience mirrors NotebookLM's notebook model: each notebook groups chats and source files together as a personal knowledge base.

Crucially, notebooks sync across both apps. Create a notebook in NotebookLM, it appears in Gemini. Start a notebook in Gemini, NotebookLM picks it up.

What moves across

Three things now share state between the two apps:

1. Sources. PDFs, Google Docs, Drive files, web pages, and the other source types NotebookLM already supports.
2. Chats. Every conversation inside a notebook is preserved and accessible from either app.
3. Memory. The notebook's evolving context (what Claude or Gemini has learned about your project) persists across both interfaces.

Why Google did this

NotebookLM has been Google's most unambiguously good AI product, known especially for its audio overviews and source-grounded answers. But it lived as a separate product from Gemini, creating a fragmented experience: power users kept notebooks for research, and Gemini for everything else.

The merge unifies the two. Gemini gets NotebookLM's source-grounded discipline; NotebookLM gets Gemini's broader integration surface (Android, Chrome, Workspace).

For Workspace customers

Expanded NotebookLM capabilities rolled out in parallel for Google Workspace for Education Plus and Teaching and Learning add-on customers. Higher feature limits across the board at no additional cost. Enterprise Workspace admins should check the recent Workspace Updates blog for the exact limit changes.

What remains separate

NotebookLM as a standalone app is not going away. The two apps still have distinct surfaces, and each optimises for different use cases (research-focused vs generalist). The sync is about shared data, not a forced merge.