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. Powered by Gemini (1.5+). February 2026 mobile app updates enable AI-powered video summaries, customizable infographics with full design control, and tailored slide decks directly from phones. Video Overviews (web) now open the customization window directly—one-click generation removed in favor of personalized output. Web Importer Chrome Extension (updated Feb 18, 2026) adds one-click import, bulk importing of links/playlists/RSS feeds. Interactive Audio Overviews generate podcast-style discussions you can interrupt and steer, with Brief, Critique, and Debate formats. Infographics and Slide Decks (powered by Nano Banana Pro image model) visualize source material. Advanced presentation tools allow per-slide corrections and .pptx export. Deep Gemini integration: attach notebooks to Gemini chats, create reusable "Gems" (custom AI assistants), combine documents with web research, export to Google Docs/Gmail/Sheets. Studio suite creates flashcards, quizzes, and Learning Guides. Free: 100 notebooks, 50 sources/notebook, 50 queries/day, 3 Audio Overviews/day. NotebookLM Plus (via Google AI Pro $20/mo): 5x more generations. Google AI Ultra ($250/mo): 50x more generations. Business: included in Google Workspace Business Standard ($14/user/mo).