Both turn your own documents into an AI study companion that answers and quizzes you strictly from your sources. People weigh them against each other because DeepTutor adds explanation-grading and cross-session memory where NotebookLM offers polished audio/video overviews and mind maps.
The verdict
Pick DeepTutor if you want self-hosting, provider choice, and graded explanations that track your mistakes over time
Pick NotebookLM (Gemini Notebook) if you want a zero-setup Google tool for fast audio overviews, mind maps, and slide decks from a pile of sources
At a glance
| DeepTutor | NotebookLM (Gemini Notebook) | |
|---|---|---|
| Price and hosting | free, Apache-2.0, self-hosted | free tier; Plus $4.99-$199.99/mo |
| Model provider choice | any provider, local models too | Gemini models only, no choice |
| Core strength | grades your own explanations | audio/video overviews, mind maps |
| Who built it, setup | HKU lab, pip/Docker install | Google Labs, sign in only |
Side by side
Price and hosting
DeepTutor is Apache-2.0 licensed and free to self-host via pip, Docker, or source, so the only cost is whatever model provider or local model you bring.
NotebookLM (Gemini Notebook): NotebookLM has a free tier (100 notebooks, 50 sources each) plus paid Google AI tiers at $4.99, $19.99, and $99.99 to $199.99 a month that raise notebook and source caps.
Model provider choice
DeepTutor lets you pick a provider from its own catalog, including OpenAI, Anthropic, Google Gemini, DashScope, and local runtimes via Ollama, LM Studio, or llama.cpp.
NotebookLM (Gemini Notebook): NotebookLM runs exclusively on Google's own Gemini 3 model across every paid tier, with no option to swap in another vendor's model.
Core strength
DeepTutor's grouped assessments present two to four questions at once, grade each explanation as incomplete, incorrect, or uncertain against your own source material, and carry unresolved mix-ups into the next session instead of restarting.
NotebookLM (Gemini Notebook): NotebookLM's signature strength is turning a pile of up to 50 to 600 sources (by tier) into podcast-style audio overviews, video overviews, slide decks, and mind maps with citations.
Who built it, setup
DeepTutor comes from HKUDS, a university research lab, and requires installing and configuring it yourself plus supplying your own API keys or local models.
NotebookLM (Gemini Notebook): NotebookLM is a Google Labs product you just sign into with a Google account, with zero install and all compute handled by Google.
Links
- DeepTutor: https://github.com/HKUDS/DeepTutor
- NotebookLM (Gemini Notebook): https://notebooklm.google.com/
- This comparison on Telegram: https://t.me/SkipCI/326
FAQ
When should I pick DeepTutor over NotebookLM (Gemini Notebook)?
Pick DeepTutor if you want self-hosting, provider choice, and graded explanations that track your mistakes over time
When should I pick NotebookLM (Gemini Notebook) over DeepTutor?
Pick NotebookLM (Gemini Notebook) if you want a zero-setup Google tool for fast audio overviews, mind maps, and slide decks from a pile of sources