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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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Perplexity
S
Groq
S
Taskade
B
Fathom
S
TaglineAI search done right. Cited answers, not chat theater.The fastest AI inference in the world. Crazy low latency.AI project management with agents for each team.Meeting notes, free forever for individuals.
CategoryResearchDev PlatformProductivityMeetings
PricingFree + $20/mo ProFree tier + pay-as-you-go APIFree + $8-$20/user/moFree for individuals + $15-$29/user/mo teams
Best forReplacing Google for any question where you want a cited answer in seconds.Developers who need sub-100ms LLM responses.Small teams wanting AI baked into project management.Solo operators, freelancers, small teams on a budget.
Strengths
  • Sources every claim
  • Fast, current answers
  • Pro Search runs multi-step research
  • Spaces for persistent context
  • 500+ tokens/sec on Llama/Mixtral — feels instant
  • Custom LPU hardware
  • Great free tier
  • Custom AI agents per project
  • Doc + tasks + kanban in one
  • Affordable for teams
  • Unlimited free tier for solo use
  • Strong summaries + action items
  • Works in Zoom, Meet, Teams
Weaknesses
  • Not a general chatbot
  • Answers can be shallow on complex topics
  • Open-weight models only (no Claude/GPT)
  • Less flexibility on custom configs
  • Feature sprawl
  • AI agents need tuning to be useful
  • Bot-joining model
  • Team features gated
Kai's verdictS-tier for search. I use it before Google now. If you're still Googling everything, try this for a week.S-tier for speed. When latency is the product, start here.B-tier. Solid product but crowded market. Try it if Notion AI feels too generic.S-tier for solo + free. The best free option, hands down.
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