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Side-by-side: what they do, what they cost, what Kai actually thinks. Pass up to 4 tools via ?tools=claude,chatgpt,gemini.
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Fathom
S
Pika
A
Perplexity
S
TaglineMeeting notes, free forever for individuals.The playful, accessible AI video tool.AI search done right. Cited answers, not chat theater.
CategoryMeetingsVideoResearch
PricingFree for individuals + $15-$29/user/mo teamsFree + $8-$58/moFree + $20/mo Pro
Best forSolo operators, freelancers, small teams on a budget.Social media creators, beginners, anyone wanting quick fun clips.Replacing Google for any question where you want a cited answer in seconds.
Strengths
  • Unlimited free tier for solo use
  • Strong summaries + action items
  • Works in Zoom, Meet, Teams
  • Ingredients feature — combine people, objects, scenes
  • Lip sync + sound effects
  • Fun, approachable UX
  • Sources every claim
  • Fast, current answers
  • Pro Search runs multi-step research
  • Spaces for persistent context
Weaknesses
  • Bot-joining model
  • Team features gated
  • Lower fidelity than Runway/Kling
  • Still rough on complex scenes
  • Not a general chatbot
  • Answers can be shallow on complex topics
Kai's verdictS-tier for solo + free. The best free option, hands down.A-tier for social/casual. B-tier for serious work. Good entry point.S-tier for search. I use it before Google now. If you're still Googling everything, try this for a week.
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