NotebookLM
AI research assistant for asking questions and getting grounded answers from your sources
Notes
Free standard access with a personal Google Account. Google lists 100 notebooks, up to 50 sources per notebook, 50 chats per day, 3 audio overviews per day, 3 video overviews per day, 10 reports, flashcards, and quizzes per day, and 10 Deep Research runs per month on the standard tier. Advanced sharing and higher limits require a paid Google AI plan; custom chat and analytics are available to everyone.