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Connected Papers vs Perplexity AI

Both are research tools. Here is what separates them.

Connected PapersPerplexity AI
What it isA unique, visual tool to help researchers and applied scientists find and explore papers relevant to their field of work.AI-powered search engine providing accurate, sourced answers using LLMs and real-time web search.
CategoryResearchResearch
PricingPaidFreemium · $20/mo
How it billsNot publishedFlat monthly
Free tierNoYes
RatingNot yet rated4.6 from 5,400 reviews
Features—
  • Real-time web search
  • Cited sources
  • Pro Search deep research
  • File analysis
  • Image search
  • Code execution
  • Collections
  • API access
What works
  • Sits in Research, one of the better-covered categories here — easy to compare
  • Accurate with citations
  • Real-time information
  • Excellent for research
  • Clean interface
  • Generous free tier
What does not
  • No free tier — it has to be paid for before it can be tried
  • Does not publish a price on its own site, so the cost is only clear after signing up
  • 44 other tools in this catalogue claim to do the same job
  • 12 tools in the same category have a free tier
  • Pro features behind paywall
  • Sometimes shallow answers
  • Limited creative tasks
  • Fewer integrations

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