Question: Is there a tool that can help me quickly understand complex technical documents and extract key information?

If you're looking for a tool that can quickly digest technical documents and help you find the information you need, ChatDOC is a great option. This AI information retrieval system can process and summarize documents in PDF, DOC and EPUB formats. It comes with features like instant answers, in-depth AI analysis and image analysis with GPT-4 integration. It also supports multi-document chat and custom models for training answers. It's geared for students, professionals and businesses that want to quickly find information in documents.

Another option is Unriddle, which builds an AI assistant on top of any document to help you read and research more effectively. It can answer your questions immediately, summarize complex information and help you take notes and write. Unriddle supports more than 90 languages and can handle large PDF files, so it's good for researchers and scientists trying to understand and extract information from lots of documents.

If you're mostly working with PDFs, ChatPDF is a good option. You can upload a PDF and ask questions, and the system will return answers and summaries. The system supports multi-file chats and shows source citations, so it's good for students, researchers and professionals. It can handle PDFs in any language, too, and will return answers in that language.

Last, MapDeduce is a flexible tool to extract information and answers from complex documents in any language. It can summarize documents, generate questions based on context and identify red-flag terms. It can handle multiple file types and has a Chrome extension for easy integration. MapDeduce is good for professionals, researchers and students who have to process lots of complex documents.