Question: Is there a writing assistant that can help me summarize long documents and rephrase sentences for better clarity?

Wordtune is an AI writing assistant that comes with a variety of tools, including a Summarizer that can summarize YouTube videos, blog posts and PDFs. It also offers Rewrite suggestions for rewritten content, which can be useful for rewriting sentences and improving your writing. Wordtune is available as a desktop, mobile and web app, and it can be integrated with tools like Google Calendar, Microsoft Word and Slack.

Another option is Writetone, which has a Paraphraser for rewriting sentences and a Summary tool for summarizing text. It also has HumanGPT to give AI-sounding writing a more human voice and Grammar Check for editing. Writetone is available as a Chrome extension and through MS Word integration, so it can be used in a variety of situations.

If you want a suite of writing tools, QuillBot is worth a look. It's got a paraphraser, grammar checker, plagiarism checker and summarizer. QuillBot is designed to help you write more efficiently, and it can be embedded into other apps and websites. Its interface is easy to use, and its tools are useful for writers of all skill levels.

Last, you could try Rewriter AI, which is geared specifically for paraphrasing and summarizing text. It's got real-time grammar checks and can summarize text in an instant, cutting down articles while preserving the original meaning. It's good for writers who need to reword and summarize lots of text quickly and accurately.