Literature discovery & search Proven
Finds, ranks and answers questions about published work - from keyword ranking to agents that read papers and cite an answer.
What goes wrong Confident citations to papers that do not say what is claimed.
11 tools
New2026
Perplexity
Citation-Backed Conversational Answer Engine
New2026
Kimi Deep Research
Autonomous Multi-Step Research Report Agent
New2026
Litmaps
Visual Citation Map for Literature Discovery
New2026
AnswerThis
AI Research Assistant with Cited Literature Reviews
Research Rabbit
Citation Graph Explorer for Literature Discovery
Undermind
Deep AI Literature Search Assistant
Consensus
AI Evidence Search Engine for Scientific Claims
Elicit
AI Systematic Review and Evidence Extraction
Research Rabbit
Citation Graph Explorer for Literature Discovery
Undermind
Deep AI Literature Search Assistant
Consensus
AI Evidence Search Engine for Scientific Claims
Elicit
AI Systematic Review and Evidence Extraction