NotebookLM is a research and thinking partner from Google, built with the latest Gemini models. It is grounded in the information you trust, allowing you to upload sources such as PDFs, websites, YouTube videos, audio files, Google Docs, and Google Slides. NotebookLM then summarizes these sources, makes connections between topics, and provides instant insights. A key feature is its ability to provide clear citations for its responses, showing exact quotes from the sources. It also includes an Audio Overview feature that can turn sources into engaging "Deep Dive" discussions. The tool is designed to help with studying, organizing thinking, and sparking new ideas. NotebookLM emphasizes privacy, stating that it does not use your data to train its models unless you share feedback.