ChatPDF is an AI information retrieval system that lets you ask questions about PDFs, including research papers, academic papers and legal contracts. You can upload a PDF, then ask questions and the system will respond with answers and summaries. It can handle multi-document chats, cite sources and handle PDFs in any language, so it's good for researchers and students.
Another good option is Coral AI, which offers document summarization, question answering with page citations, translation into multiple languages, and citation generation. It can handle a variety of documents, including books and research papers, and can help you quickly analyze documents, freeing up 10-15 hours a week, the company says.
If you want to handle a broader range of documents, ChatDOC offers immediate answers, in-depth AI analysis and multi-document chat. It can handle PDF, DOC and EPUB files, and offers a browser extension for easy uploads. It also can analyze images with GPT-4 integration and math formulas, which could be useful for students and professionals.