Question: Can you suggest a LaTeX editor that allows real-time collaboration and has a live preview feature?

If you're looking for a LaTeX editor with real-time collaboration and live preview, ScienHub is a good choice. It's got a collaborative interface with a clean look and real-time preview of what you're typing. It also compiles LaTeX quickly and lets you share projects with others. ScienHub also comes with PaperGPT, an AI-powered language polish tool, and hundreds of LaTeX templates for different types of documents. It's geared for researchers and academics, with a tiered pricing system starting with a free basic plan.

Another option is CKEditor, a JavaScript-based text editor that supports real-time collaborative editing. It's got track changes, comments and revision history, so it's good for collaborative authoring of documents and other content. CKEditor also has AI-assisted writing tools, and you can export content as a PDF or Word document. Its modular design makes it easy to integrate with popular frameworks like Angular, React and Vue.js, and it has various pricing tiers depending on the features and support you need.

If you need advanced OCR abilities along with real-time collaboration, Mathpix could be for you. This AI-powered system converts images and PDFs into editable text and has collaborative editing abilities through its Snip tool. Mathpix can recognize complex mathematical equations and chemical diagrams and convert them into digital formats. It's good for education, accessibility and bulk digitization, with flexible pricing options and an on-premise option for secure conversions.