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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
Groq
S
Sudowrite
S
Cursor
S
TaglineMeeting notes, free forever for individuals.The fastest AI inference in the world. Crazy low latency.AI writing tool built specifically for fiction writers.VS Code fork that made AI coding actually work.
CategoryMeetingsDev PlatformWritingCoding
PricingFree for individuals + $15-$29/user/mo teamsFree tier + pay-as-you-go API$19-$59/moFree + $20/mo Pro + $40/mo Business
Best forSolo operators, freelancers, small teams on a budget.Developers who need sub-100ms LLM responses.Novelists, screenwriters, fiction short-form writers.Developers. Non-developers who want to ship working code.
Strengths
  • Unlimited free tier for solo use
  • Strong summaries + action items
  • Works in Zoom, Meet, Teams
  • 500+ tokens/sec on Llama/Mixtral — feels instant
  • Custom LPU hardware
  • Great free tier
  • Brainstorm, expand, rewrite modes designed for fiction
  • Story Bible for character + plot tracking
  • Understands voice + tone better than generic chatbots
  • Tab completion feels like mind-reading
  • Composer for multi-file edits
  • Runs Claude, GPT, Gemini — you pick
Weaknesses
  • Bot-joining model
  • Team features gated
  • Open-weight models only (no Claude/GPT)
  • Less flexibility on custom configs
  • Pricey for casual use
  • Fiction-only focus — not for business writing
  • Can feel overwhelming for non-coders
  • Expensive at scale
Kai's verdictS-tier for solo + free. The best free option, hands down.S-tier for speed. When latency is the product, start here.S-tier for fiction. If you're writing a novel, this beats raw ChatGPT every time.S-tier for coding. If you write code of any kind, this pays back the $20 in a day.
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