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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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Groq
S
Perplexity
S
Manus
S
Fathom
S
TaglineThe fastest AI inference in the world. Crazy low latency.AI search done right. Cited answers, not chat theater.Autonomous AI agent that actually finishes tasks.Meeting notes, free forever for individuals.
CategoryDev PlatformResearchAgentsMeetings
PricingFree tier + pay-as-you-go APIFree + $20/mo ProFree tier + $39-$199/moFree for individuals + $15-$29/user/mo teams
Best forDevelopers who need sub-100ms LLM responses.Replacing Google for any question where you want a cited answer in seconds.People who want to hand off tasks entirely — trip planning, research, spreadsheet building.Solo operators, freelancers, small teams on a budget.
Strengths
  • 500+ tokens/sec on Llama/Mixtral — feels instant
  • Custom LPU hardware
  • Great free tier
  • Sources every claim
  • Fast, current answers
  • Pro Search runs multi-step research
  • Spaces for persistent context
  • General-purpose agent — research, book, build, analyze
  • Parallel task execution
  • Web browsing + file creation + coding
  • Unlimited free tier for solo use
  • Strong summaries + action items
  • Works in Zoom, Meet, Teams
Weaknesses
  • Open-weight models only (no Claude/GPT)
  • Less flexibility on custom configs
  • Not a general chatbot
  • Answers can be shallow on complex topics
  • Still hit-or-miss on complex multi-hour tasks
  • Can burn credits fast
  • Bot-joining model
  • Team features gated
Kai's verdictS-tier for speed. When latency is the product, start here.S-tier for search. I use it before Google now. If you're still Googling everything, try this for a week.S-tier in the agent category. The first one I'd give to a non-technical friend.S-tier for solo + free. The best free option, hands down.
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