If you need some free tools to process a lot of video information for research or studying, Video Highlight is a good option. This AI-based tool can summarize and take notes from videos, transcribe automatically and add interactivity with live Q&A and smart search. It can integrate with productivity tools like Notion for note-taking and export highlights to Readwise, too, so it's a good tool for market research or getting a quick grasp of a video.
Another option is Nobinge, which is geared specifically for summarizing YouTube videos and cutting out ads and other filler. It works with multiple languages and offers an AI-powered tutor for 24/7 Q&A. Nobinge is a web app, but an API lets companies incorporate content transcription and summarization into their own products, and it can handle a variety of media formats.