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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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Lex
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TaglineSpreadsheets with AI + live integrations baked in.Build a full app from a prompt. Stripe-ready.VS Code fork that made AI coding actually work.Google Docs with an AI collaborator baked in.
Categorydatadesigncodingwriting
PricingFree + $19-$89/user/moFree + $25-$100/moFree + $20/mo Pro + $40/mo BusinessFree + $12/mo
Best forOps teams, marketers, anyone building dashboards from multiple sources.Non-devs + solopreneurs shipping MVPs.Developers. Non-developers who want to ship working code.Essays, long-form drafts, thinking on the page.
Strengths
  • Pull live data from Stripe, Slack, Google Analytics, etc.
  • AI functions inside cells
  • Modern UX
  • Generates full apps + DB + auth
  • Good for non-developers
  • Ships faster than hand-coding
  • Tab completion feels like mind-reading
  • Composer for multi-file edits
  • Runs Claude, GPT, Gemini — you pick
  • Clean writing UX — distraction-free
  • +++ prompt triggers AI help
  • Collaboration + AI feedback together
Weaknesses
  • Not a full Excel replacement for heavy users
  • Integrations best on paid tiers
  • Complexity ceiling
  • Can generate brittle code
  • Can feel overwhelming for non-coders
  • Expensive at scale
  • Less feature-rich than Google Docs
  • AI ceiling below dedicated tools
Kai's verdictA-tier. The most interesting spreadsheet in years. Great for ops dashboards.A-tier. The strongest 'no-code' AI builder right now. Great for founder MVPs.S-tier for coding. If you write code of any kind, this pays back the $20 in a day.A-tier. Beautiful UX. The writing app I'd pick if I only wrote long-form.
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