NotebookLM
★ 4.6Google's AI research assistant — upload sources, ask cited questions, auto-generate two-host podcasts.
Who is NotebookLM for?
- Students and researchers — fuse 20 papers into a cited summary in minutes
- Heavy readers — turn PDFs, websites and YouTube videos into a chat you can interrogate
- Content teams — convert a client brief into a 10-minute draft podcast
Pricing
| Plan | USD | What you get |
|---|---|---|
| Free | 0 | 100 notebooks, 50 sources each, 3 Audio Overviews/day |
| Plus (Google AI Pro) | 19.99/month | 500 sources/notebook, unlimited audio, customisation |
Notes
- Available wherever Google AI is — no major regional blocks
- Vietnamese reading and summarisation work very well
- Audio Overview supports many languages but the English voices remain the most polished
Powerful workflows
- Drop a textbook in → query it like a personal tutor
- Paste a YouTube lecture URL → get a summary + flashcards
- Upload your entire project wiki → let new hires onboard via Q&A
✓ Pros
- Answers strictly from your uploaded sources — minimal hallucination
- Audio Overview generates a surprisingly good two-host podcast from any doc
- Generous free tier covers most personal research needs
✗ Cons
- Audio Overview only sounds great in English
- 50-source limit per notebook on the free tier
- Synthesises, not creates — bad for original writing