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Fathom
S
Claude Agent SDK
S
Perplexity
S
Elicit
S
TaglineMeeting notes, free forever for individuals.Anthropic's SDK for building your own agents on Claude.AI search done right. Cited answers, not chat theater.AI research assistant for academic literature.
CategoryMeetingsAgentsResearchResearch
PricingFree for individuals + $15-$29/user/mo teamsAPI usage + SDK is freeFree + $20/mo ProFree + $12-$42/mo
Best forSolo operators, freelancers, small teams on a budget.Developers building custom agents for their own company/product.Replacing Google for any question where you want a cited answer in seconds.Grad students, researchers, anyone doing literature reviews.
Strengths
  • Unlimited free tier for solo use
  • Strong summaries + action items
  • Works in Zoom, Meet, Teams
  • Production-grade agent primitives
  • Built on Claude (best reasoning)
  • Full control — build exactly what you need
  • Sources every claim
  • Fast, current answers
  • Pro Search runs multi-step research
  • Spaces for persistent context
  • Searches 125M+ papers
  • Extracts + synthesizes findings across papers
  • Systematic review workflow
Weaknesses
  • Bot-joining model
  • Team features gated
  • Developer-only
  • You build the UI
  • Not a general chatbot
  • Answers can be shallow on complex topics
  • Academic-only
  • Can hallucinate citations — verify everything
Kai's verdictS-tier for solo + free. The best free option, hands down.S-tier for builders. The right primitives. What Kai is built on under the hood.S-tier for search. I use it before Google now. If you're still Googling everything, try this for a week.S-tier for academic research. Nothing else comes close for systematic reviews.
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