Question: I'm looking for a tool that can help me identify the most important sentence or line in a piece of text, do you know of any?

If you need a tool to help you figure out what's most important in a given passage of text, the AI Summarizer is a good option. It can summarize essays, articles and other text in a way that preserves context, and with options for summarizing text and bullet points and for setting the length of the summary, it's good for students, writers and researchers who need to quickly and efficiently cut down a lot of verbiage.

Another good option is Chapterize.ai, which uses AI to extract key messages from long documents like books and research papers. It can also break down information into bite-sized chunks and summarize multiple types of documents, and it's available as a cloud-based service. Options like exporting results as Markdown and sending them to your Kindle make it useful for lots of situations.

If you want a more elaborate work environment, Otio is an AI-first research environment with tools like automatic summarization and a chat interface with your documents. It handles more than 20 languages and is geared for researchers, students and analysts who need to summarize documents, create outlines and generate first drafts. It's particularly good for organizing big documents and getting new ideas out of research.

If you want a more powerful tool for finding information and analyzing it, ChatDOC can give you immediate answers to questions and AI analysis of documents like PDFs. It's got multi-document chat and image analysis abilities, too, and it's integrated with GPT-4 for more AI smarts. It's designed as an AI assistant for students and professionals, and the browser extension lets you upload documents for analysis privately.