Research & Knowledge.
AI agents designed to search, synthesize, and surface information from the web, academic papers, and large corpora. Ranked by aggregate score from 4 published community and editorial evaluations. Top of this catalog: Perplexity, Consensus, You.com.
8Agents
4Evaluations
3.9Median /10
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PerplexityEditor's pickPerplexity AI · Free (limited daily Pro searches); Pro $20/mo; Teams $40/user/mo · BrowserPerplexity is the leading AI-powered search engine and research assistant, combining real-time web search with LLM synthesis to answer questions with cited sources. Its "Pro Search" and "Deep Research" modes can autonomously browse dozens of pages and produce structured research reports. With over 15 million monthly active users, Perplexity has become the default research tool for developers, researchers, and knowledge workers.BrowserEasy setupClaude SonnetRelFitEaseCost9.01 reviews02CConsensusConsensus · Free (20 searches/mo); Premium $8.99/mo; Teams $9.99/user/mo · BrowserConsensus is an AI search engine specifically designed to surface evidence from peer-reviewed scientific research, providing "Consensus Meters" that indicate how strongly the evidence supports a claim. Unlike general AI tools that may hallucinate citations, Consensus only references real papers and provides direct links to source documents. It is particularly valuable for health, nutrition, and science questions where evidence quality matters.BrowserEasy setupGPT-4oRelFitEaseCost0.00 reviews03
You.comYou.com · Free tier; Pro $20/mo; Team $25/user/mo · BrowserYou.com is an AI search engine and agent platform offering multiple research modes including Smart (fast web search), Research (deep multi-source analysis), and Create (content generation). Its YouAgent mode can complete multi-step tasks by combining web search, code execution, and data analysis. You.com differentiates with its privacy focus and ability to search specific apps like Reddit, GitHub, or StackOverflow.BrowserEasy setupClaudeRelFitEaseCost0.00 reviews
PerplexityEditor's pickPerplexity AI · Free (limited daily Pro searches); Pro $20/mo; Teams $40/user/mo · BrowserPerplexity is the leading AI-powered search engine and research assistant, combining real-time web search with LLM synthesis to answer questions with cited sources. Its "Pro Search" and "Deep Research" modes can autonomously browse dozens of pages and produce structured research reports. With over 15 million monthly active users, Perplexity has become the default research tool for developers, researchers, and knowledge workers.BrowserEasy setupClaude SonnetRelFitEaseCost9.01 reviews02CConsensusConsensus · Free (20 searches/mo); Premium $8.99/mo; Teams $9.99/user/mo · BrowserConsensus is an AI search engine specifically designed to surface evidence from peer-reviewed scientific research, providing "Consensus Meters" that indicate how strongly the evidence supports a claim. Unlike general AI tools that may hallucinate citations, Consensus only references real papers and provides direct links to source documents. It is particularly valuable for health, nutrition, and science questions where evidence quality matters.BrowserEasy setupGPT-4oRelFitEaseCost0.00 reviews03You.comYou.com · Free tier; Pro $20/mo; Team $25/user/mo · BrowserYou.com is an AI search engine and agent platform offering multiple research modes including Smart (fast web search), Research (deep multi-source analysis), and Create (content generation). Its YouAgent mode can complete multi-step tasks by combining web search, code execution, and data analysis. You.com differentiates with its privacy focus and ability to search specific apps like Reddit, GitHub, or StackOverflow.BrowserEasy setupClaudeRelFitEaseCost0.00 reviewsCompare ready. Start with the top 3 visible agents.Compare