Question: I'm looking for an AI-powered solution that can help me analyze and understand complex documents in multiple languages.

Unriddle offers an AI assistant to read and research documents more easily. It supports more than 90 languages and offers features like automatically linking related sources, highlighting text, creating interactive graphs and handling large PDF files. It's geared for researchers who need to quickly digest and extract information.

Another interesting option is Coral AI, which lets you extract information from PDFs in 90+ languages. It offers features like document summarization, question answering with citations, text translation and study guide generation. It's good for quickly analyzing documents and boosting productivity.

ChatPDF and ChatPDF are AI-powered systems that can help you understand PDFs better. Both support multiple languages and let you ask questions and get answers with cited sources. ChatPDF lets you upload documents in batches and uses the GPT-4 technology for summarization and text generation abilities, making it good for a broader range of people.

For a more general purpose tool, ChatDOC offers AI analysis of many types of documents, including PDFs. It offers instant answers, in-depth text analysis and multi-document chat abilities. It's good for people who need to handle lots of different documents.