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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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TaglineGoogle Docs with an AI collaborator baked in.Vercel's AI-powered UI generator. Prompt to shadcn component.Spreadsheets with AI + live integrations baked in.Open-source VS Code agent. Reads + writes + runs.
CategoryWritingDesignDataCoding
PricingFree + $12/moFree + $20/moFree + $19-$89/user/moFree (open source) + your API costs
Best forEssays, long-form drafts, thinking on the page.Frontend devs, PMs prototyping UIs, anyone on Next.js.Ops teams, marketers, anyone building dashboards from multiple sources.VS Code users who want agentic coding without changing IDEs.
Strengths
  • Clean writing UX — distraction-free
  • +++ prompt triggers AI help
  • Collaboration + AI feedback together
  • Ships working React + Tailwind code
  • Shadcn/ui native
  • One-click deploy to Vercel
  • Pull live data from Stripe, Slack, Google Analytics, etc.
  • AI functions inside cells
  • Modern UX
  • Free extension for VS Code
  • Plan + Act modes
  • Model-agnostic (Claude, GPT, local)
  • Sees terminal output and iterates
Weaknesses
  • Less feature-rich than Google Docs
  • AI ceiling below dedicated tools
  • Best for shadcn stack
  • Iterating can be fiddly
  • Not a full Excel replacement for heavy users
  • Integrations best on paid tiers
  • Can burn tokens fast if not watched
  • Less polished than Cursor
Kai's verdictA-tier. Beautiful UX. The writing app I'd pick if I only wrote long-form.S-tier. If you're on Vercel/shadcn, this is cheating.A-tier. The most interesting spreadsheet in years. Great for ops dashboards.A-tier. Best free agentic option in VS Code. Use with Claude for best results.
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