Open Notebook is an open-source, privacy-focused alternative to Google's Notebook LM that allows users to control their research data while supporting 15+ AI providers including OpenAI, Anthropic, and Ollama. The tool enables organizing multi-modal content (PDFs, videos, audio, web pages), generating professional multi-speaker podcasts, intelligent search across content, and AI-powered conversations. Key advantages include complete data sovereignty through self-hosting, flexible AI provider choice, advanced podcast generation with 1-4 speakers, granular context control, full REST API access, and unlimited customization. Built with Python, FastAPI, SurrealDB, and Streamlit, it offers Docker deployment and comprehensive documentation for getting started.