Researchuses AI
Gemini Notebook (formerly NotebookLM)
Google's source-grounded research notebook (renamed from NotebookLM in July 2026); answers only from sources you upload, plus audio overviews, mind maps and reports.
Best for
Asking questions of your own series bible and previous books for continuity.
Pricing
Free to try; paid plans listed on site (checked 2026-10-18 on the official site; prices change)
Pros
- Answers grounded in your own documents
- Audio overviews of your notes
Cons
- Only as good as the sources you upload
Visit the official Gemini Notebook (formerly NotebookLM) site →