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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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Dev Platform
Agents
Voice
Video
Audio
Research
Coding
Chatbots
Image
Meetings
Design
Productivity
Writing
Data
Marketing
Education
Rows
A
Fathom
S
Sudowrite
S
Groq
S
TaglineSpreadsheets with AI + live integrations baked in.Meeting notes, free forever for individuals.AI writing tool built specifically for fiction writers.The fastest AI inference in the world. Crazy low latency.
CategoryDataMeetingsWritingDev Platform
PricingFree + $19-$89/user/moFree for individuals + $15-$29/user/mo teams$19-$59/moFree tier + pay-as-you-go API
Best forOps teams, marketers, anyone building dashboards from multiple sources.Solo operators, freelancers, small teams on a budget.Novelists, screenwriters, fiction short-form writers.Developers who need sub-100ms LLM responses.
Strengths
  • Pull live data from Stripe, Slack, Google Analytics, etc.
  • AI functions inside cells
  • Modern UX
  • Unlimited free tier for solo use
  • Strong summaries + action items
  • Works in Zoom, Meet, Teams
  • Brainstorm, expand, rewrite modes designed for fiction
  • Story Bible for character + plot tracking
  • Understands voice + tone better than generic chatbots
  • 500+ tokens/sec on Llama/Mixtral — feels instant
  • Custom LPU hardware
  • Great free tier
Weaknesses
  • Not a full Excel replacement for heavy users
  • Integrations best on paid tiers
  • Bot-joining model
  • Team features gated
  • Pricey for casual use
  • Fiction-only focus — not for business writing
  • Open-weight models only (no Claude/GPT)
  • Less flexibility on custom configs
Kai's verdictA-tier. The most interesting spreadsheet in years. Great for ops dashboards.S-tier for solo + free. The best free option, hands down.S-tier for fiction. If you're writing a novel, this beats raw ChatGPT every time.S-tier for speed. When latency is the product, start here.
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