Google launched NotebookLM in 2023 as a web-based platform for document management, utilizing advanced AI models for information retrieval and analysis. The company plans to introduce a dedicated Android app, which is currently available for preview and pre-registration on the Play Store, with an official release expected during the Google I/O event in late May. NotebookLM specializes in processing various file types, including text documents, websites, and videos, with a context window of 500,000 tokens and the capability to handle document uploads up to 200MB.