Overview
NotebookLM by Google lets you upload documents, PDFs, websites, and YouTube videos, then chat with your sources. It generates summaries, answers questions grounded in your materials, and creates audio overviews — like a personalized podcast of your research.
Pricing
Free tierFully free (Google account required)
Paid plansNotebookLM Plus available for power users
✅ When to use
- Research synthesis across multiple documents
- Studying and learning from course materials
- Generating audio summaries of documents (podcast-style)
- Fact-checking and source-grounded Q&A
- Preparing for meetings by uploading briefing docs
❌ When NOT to use
- General AI chat without specific sources — use ChatGPT or Claude
- Real-time web search — use Perplexity instead
- Writing long-form content — Claude or ChatGPT are better
- Collaborative team workspaces — use Notion AI instead
💡 Personal Tips
NotebookLM's killer feature is the Audio Overview — it generates a surprisingly engaging podcast-style discussion of your uploaded documents. Upload a research paper, get a 10-minute audio summary you can listen to while walking. It's completely free, which is remarkable. The source-grounding means it won't hallucinate — every answer cites specific passages from your documents.