If you want a tool that lets you search for information in natural language and then pull out the relevant parts of your documents, WriteSparkle is a top contender. It supports more than 80 languages, offers chat-based document insights, can generate new content from existing documents and automate workflows with AI-powered app integrations. It also includes natural language semantic search, which is useful for searching and extracting information from PDFs. WriteSparkle integrates with a variety of tools, so it's flexible and easy to use.
Another strong contender is Exa, a search engine that uses the embedding and transformer-based models to process search queries. It accepts natural language queries and returns page content immediately, returning results that are contextually relevant. Exa is particularly useful when used with Large Language Models (LLMs) to provide authoritative web content and avoid hallucinations. It offers a variety of pricing options, including a free tier with limited results and queries, and custom enterprise plans.
If you want an AI tool specifically for PDFs, ChatPDF and AskYourPDF are both good options. ChatPDF lets you upload a PDF and ask questions, getting answers and summaries, and citing sources so you can trust the information. It supports multiple languages and is good for students, researchers and professionals. Similarly, AskYourPDF is a conversational interface powered by ChatGPT that lets you ask questions to extract information from long PDFs and manage your documents better.