Saya is an AI tool designed to enhance efficiency and streamline learning by summarizing various forms of media such as podcasts, YouTube videos, and articles. This versatile AI uses cutting-edge technology including GPT4 and Claude. Saya supports different file formats including PDFs, Word documents, and audio files, working well even with lengthy content, and can thus be used to summarize long books, reports, articles, clips, lectures, and more. For research purposes, Saya employs 'Smarter Scientific Search' that allows users to search over research and medical papers from reliable sources. It also features 'News at Scale', accessing real-time news via an advanced search and monitoring platform. Saya enriches answers for scaled research using web search. Users can also customize Saya as their AI learning companion, where summaries from YouTube videos to lecture recordings can be tailored to sync with their study flow. Users can create a personal knowledge repository with Saya, uploading files, organizing them in collections, and even engaging in AI chats based on collection content. This tool is particularly helpful for students and lifelong learners to optimally utilize their time and make knowledge pursuit more enjoyable and efficient.