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Perplexity AI is an answer engine that combines real-time web search with AI-powered synthesis to deliver accurate, cited responses to questions. Unlike traditional search engines that return a list of links, Perplexity reads and summarizes information from multiple sources, providing answers with inline citations. Its conversational interface lets users ask follow-up questions to dig deeper. The platform includes features like Collections for organizing research, Pages for creating structured content, and a Pro Search mode that runs multiple queries to find the most comprehensive answer.

Consensus is an AI-powered academic search engine that finds and synthesizes insights from scientific literature. It searches over 200 million academic papers and provides evidence-based answers with citations. Unlike general search engines, Consensus focuses exclusively on peer-reviewed research, making it valuable for students, researchers, and professionals who need trustworthy information backed by studies. The AI summarizes findings, identifies consensus across papers, and highlights areas of disagreement in the literature.

Brave Search AI combines a privacy-focused search engine with AI-powered answers. Unlike search engines that track user behavior, Brave builds its own independent index of over 30 billion pages without profiling users. The AI features include summarized answers with citations, the ability to ask follow-up questions, and an API optimized for AI applications. The Brave Search API provides web search, LLM context, and answers endpoints for developers building RAG pipelines, chatbots, and autonomous agents.

Elicit is an AI research assistant that helps researchers find, summarize, and extract data from over 125 million academic papers. It automates systematic literature reviews, generates research reports, and extracts data from papers at scale. Elicit can analyze up to 20,000 data points simultaneously and find up to 1,000 relevant papers. All AI-generated claims are supported with sentence-level citations. Used by over 2 million researchers in academia, pharmaceuticals, and policy, Elicit aims to make research 10x more evidence-based.

Scite is a Search & Research tool developed by Scite, launched in 2020. It offers smart citation analysis, supporting & contrasting citations, research assessment and more as core capabilities. Designed for team collaboration and content creation. Available on web.

Connected Papers is a Search & Research tool developed by Connected Papers, launched in 2020. It offers visual paper graphs, similarity mapping, citation network and more as core capabilities. Designed for team collaboration and content creation. Available on web.