NotebookLM

NotebookLM is Google's AI research assistant that transforms how you work with sources. Upload PDFs, websites, YouTube videos, Google Docs, and Slides, then interact through source-grounded AI that only references your content—minimizing hallucinations. Interactive Audio Overviews generate podcast-style discussions that you can interrupt and steer. Deep Research searches the web to fill knowledge gaps with comprehensive, cited reports. Studio suite creates flashcards, quizzes with answer keys, and study guides. Google Classroom integration imports assigned resources automatically. Powered by Gemini 3 Flash. Free tier includes 100 notebooks and 50 queries/day. Google AI Pro ($20/mo) adds 500 notebooks, 500 queries/day, and 20 Audio Overviews/day.