Question: I need a tool that can help me analyze complex business documents and extract key insights quickly.

First, ChatDOC is a good option. It lets you analyze and summarize all kinds of documents, including PDFs, with features like immediate answers to questions, detailed AI analysis and GPT-4 image analysis. It also encrypts files with secure encryption before transferring them, which should appeal to professionals who need to keep information private. ChatDOC offers a free plan and a Pro plan for $360 per year, so it's more useful for people who want to integrate it into their workflow.

Another powerful option is MapDeduce. It's good for extracting information and answering follow-up questions based on that information in complex documents in any language. It can handle a variety of file formats, and you can use a Chrome extension to integrate it into your browser. MapDeduce has secure file transfer and offers a free plan and a Pro plan for $10 per month or $120 per year.

Coral AI is another option. It lets you quickly extract information from PDFs in more than 90 languages. The service offers summarization, question answering with page citations, translation and citation generation. Coral AI is designed to let you quickly get information out of documents, which is useful if you're dealing with lots of documents in different languages.

If you want a more integrated system, TextMine packages business-critical documents into a single layer of operations that makes it easier to see what's going on and scale. It offers features like Vault for structured data, Scribe for creating smart forms and Legislate for advanced search and data extraction. TextMine promises to improve productivity and lower risk with its AI-powered document management system.