Search & Research AI Tools

Free AI-powered academic search engine from the Allen Institute for AI. Indexes 200M+ papers with citation analysis and summaries.

Research tool that shows how scientific papers have been cited: supported, contrasted, or mentioned by subsequent research.

Chat with any PDF file using AI. Instantly summarize, ask questions, and extract information from documents and research papers.

Upload any research paper and ask AI to explain confusing sections. Makes academic literature accessible to non-experts.

AI tool that lets you chat with any PDF or document. Ask questions and get instant answers with cited sources.

AI document interaction tool. Chat with PDFs, books, academic papers, and websites to get instant answers.

AI research assistant that turns your own documents, PDFs, and notes into cited summaries, audio podcasts, and video overviews — grounded only in the sources you upload.