Question: I need a tool that can analyze large documents and provide summaries of key information.

For summarizing longer documents and extracting information, ChatDOC is a great option. The AI-powered tool can handle a variety of file types, including PDF, DOC and TXT, and can respond to questions with an AI analysis. It also can analyze images, with GPT-4 integration, and has a browser extension for uploading files. It's geared for students, professionals and businesses looking to quickly extract information. It offers free and Pro plans, so you can pick the best option for your needs.

MapDeduce is another option, offering document summarization and questions based on context. It can handle multiple file types, and a Chrome extension makes it easy to use. MapDeduce has secure file handling and offers several pricing tiers, including a free basic plan, so it's available to a broader audience. It's geared for professionals, researchers and students who have to wrangle complex documents.

Last, Docufai offers immediate answers from documents, and it's geared for a range of industries, including contracts, research and financial services. It offers features like auto-generated summaries, translation and secure cloud storage. It offers several pricing tiers, including a free option, and is designed to help you work more efficiently while keeping documents private.