NotebookLM

Google NotebookLM is an AI-powered research workspace developed by Google Labs, built on Gemini 3. It allows users to upload their own sources — documents, PDFs, web pages, audio, and more — and interact with them through AI-generated summaries, Q&A, and a wide range of output formats. It is free to use for individuals, with enhanced tiers available for Google Workspace and enterprise customers. Key Features: - Source-grounded AI: all responses are based on your uploaded materials, with citations - Audio Overviews: generates podcast-style discussions of your sources, available in 80+ languages - Multiple output formats: mind maps, flashcards, quizzes, study guides, briefing docs, slide decks, infographics, and data tables - Interactive Mind Map for visually exploring connections across your sources - Powered by Gemini 3 with strong multimodal support (text, images, audio) - Real-time collaboration and Workspace integration via the Gemini app - Supports output in any selected language for generated text - NotebookLM Plus and Google AI Ultra for Business tiers available for teams and enterprises