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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
Fathom
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Cursor
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Manus
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TaglineThe fastest AI inference in the world. Crazy low latency.Meeting notes, free forever for individuals.VS Code fork that made AI coding actually work.Autonomous AI agent that actually finishes tasks.
CategoryDev PlatformMeetingsCodingAgents
PricingFree tier + pay-as-you-go APIFree for individuals + $15-$29/user/mo teamsFree + $20/mo Pro + $40/mo BusinessFree tier + $39-$199/mo
Best forDevelopers who need sub-100ms LLM responses.Solo operators, freelancers, small teams on a budget.Developers. Non-developers who want to ship working code.People who want to hand off tasks entirely — trip planning, research, spreadsheet building.
Strengths
  • 500+ tokens/sec on Llama/Mixtral — feels instant
  • Custom LPU hardware
  • Great free tier
  • Unlimited free tier for solo use
  • Strong summaries + action items
  • Works in Zoom, Meet, Teams
  • Tab completion feels like mind-reading
  • Composer for multi-file edits
  • Runs Claude, GPT, Gemini — you pick
  • General-purpose agent — research, book, build, analyze
  • Parallel task execution
  • Web browsing + file creation + coding
Weaknesses
  • Open-weight models only (no Claude/GPT)
  • Less flexibility on custom configs
  • Bot-joining model
  • Team features gated
  • Can feel overwhelming for non-coders
  • Expensive at scale
  • Still hit-or-miss on complex multi-hour tasks
  • Can burn credits fast
Kai's verdictS-tier for speed. When latency is the product, start here.S-tier for solo + free. The best free option, hands down.S-tier for coding. If you write code of any kind, this pays back the $20 in a day.S-tier in the agent category. The first one I'd give to a non-technical friend.
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