Question: Is there a tool that can automatically summarize long articles and videos into key takeaways?

If you want a tool to summarize long articles and videos so you can get the gist of what's going on, Linfo could be for you. This AI-powered tool pulls out the main points of documents like articles and YouTube videos and presents them in a hierarchical format. You can dig deeper with subheadings and bullet points. Linfo also can download webpage content into mind maps and is available as a Chrome extension so you can easily incorporate it into your workflow. Prices start at $10 per month for unlimited summaries.

Another strong contender is Briefy. This tool generates structured summaries of long-form content like videos, emails, PDFs and articles. It can present information in bullet points, tables and mind maps, and it can translate text in-line for several major languages. Briefy is available as a Chrome and Safari extension and as a Gmail extension for Windows, Mac, Linux, Chrome OS and Android. It also has a personal knowledge base where you can store and review summaries, which can be useful for productivity and learning.

If you want a more elaborate learning assistant, Mindgrasp could be worth a look. It can automatically summarize video, PDF, webinar and podcast content. Mindgrasp can generate notes, summaries and quizzes, and you can upload multiple files at once. With features like instant answers and flashcard creation, it's designed to help students, professionals and teachers absorb and recall information.

TubeOnAI is another powerful tool that uses GPT-4 to summarize a variety of content, including YouTube videos and podcasts. Its features include Hot Summary for videos, Generate Content for turning summaries into more engaging content, and Smart Learning for summarizing articles. TubeOnAI offers a free plan and several paid tiers, so it's a good option for professionals and students who want to save time on both consuming and creating content.