If you want to convert a big block of text into bullet points, smudge.ai could be just what the doctor ordered. This Chrome extension has a feature called "Bulletize" that can turn a big block of text into bullet points. It dovetails nicely with ChatGPT for productivity while you're browsing or writing. With reasonable pricing and a free demo with plenty of uses, smudge.ai is a good way to automate the process.
Another option is Slideoo, a SaaS service that uses AI to create presentations and documents from long blocks of text, PDFs and website addresses. Its main job is to create detailed documents and presentations, but the AI engine can be used to break down long blocks of text into more digestible formats, including bullet points. The service also offers real-time collaboration and a variety of templates to help you get started more quickly.