Summarize papers, find sources and reason over documents.
Perplexity AI
An AI-powered answer engine that searches the web in real time and returns synthesized answers with linked source citations, rather than a plain list of results.
Elicit / Ought
A research assistant that searches academic literature, extracts key findings from papers, and summarizes them into structured, comparable tables.
Consensus
A search engine that queries peer-reviewed scientific papers to answer questions directly, surfacing supporting citations from the underlying studies.
A research and note-taking assistant that answers questions and generates summaries grounded strictly in documents and sources you upload.
OpenAI
A general-purpose conversational assistant that can answer questions, draft text, and reason through multi-step problems across many domains.