If you're looking for a Doctopus alternative, there are a lot of interesting options. One of the most promising is ChatDOC. This AI-based system lets you analyze and summarize documents in a variety of formats, including PDF, DOCX and EPUB. It can provide quick answers, delve deeper into a subject, analyze images with GPT-4 integration, and more. You can upload documents with a browser extension and encrypt data for security. A free plan is available, but the Pro plan offers more features for $360 per year.
Another good option is Unriddle. This service puts an AI interface on top of any document to give you quick answers and help you grasp complex subjects. It can summarize, take notes and even draft documents. It can automatically link related documents, highlight text and create interactive graphs. It works in more than 90 languages, and you can try it out without a credit card, so it's good for heavy-duty research.
If you want to dig deep into a document, Coral AI is a powerful tool. It can summarize documents, answer questions with citations to specific pages, and translate text into multiple languages. You can search for information without a specific search term, and it can even create study guides. Coral AI handles a wide variety of documents, and it's designed to help you work more efficiently by saving you hours a week.
Last, Sharly is a general purpose AI-powered tool to manage documents. You can have a conversation with a document, get an AI-generated summary, and ask questions and get answers with citations. Sharly lets you customize the AI personality, and it's got data protection features. It's good for researchers, project managers and lawyers who have to read a lot of documents. You can use a free version, and custom plans for organizational use.