Perplexity
An answer engine that searches the web and cites its sources.
FeaturedFreemiumAI Research
AI Research
Search, summarize and reason over sources.
Search, summarize and reason over sources.
An answer engine that searches the web and cites its sources.
Google's AI research notebook grounded in your own sources.
AI research agent that finds the papers you need.
Discover and visualize academic literature.
AI research assistant for searching and analyzing academic papers.
Free AI-powered research tool for scientific literature.
Visual graphs of related academic papers.
Search engine that answers questions using peer-reviewed research.
AI assistant to read and understand research papers.
AI academic writing assistant.
Free reference manager to collect and cite research.
Reference manager and academic network from Elsevier.
See how research has been cited — supported, contrasted or mentioned.
Read-it-later app with highlights and AI.
Social web highlighter for learning.
Web search API built for AI.
Search API for AI agents.
Ad-free premium search with AI assistant.
Summarize research papers.