Perplexity

perplexity.ai

Answer engine that cites its sources

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notebooklm.google.com

Turn your documents into summaries, Q&A and audio overviews

consensus.app

Answers drawn from peer-reviewed research

elicit.com

Research assistant that finds and summarises papers

scite.ai

See whether papers support or contrast a claim

scispace.com

Read, explain and search scientific literature

semanticscholar.org

Free AI-powered search across academic papers