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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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TaglineAI search done right. Cited answers, not chat theater.Google Docs with an AI collaborator baked in.Terminal-based AI pair programmer. Git-aware, model-flexible.Build a full app from a prompt. Stripe-ready.
CategoryResearchWritingCodingDesign
PricingFree + $20/mo ProFree + $12/moFree (open source) + whatever API you useFree + $25-$100/mo
Best forReplacing Google for any question where you want a cited answer in seconds.Essays, long-form drafts, thinking on the page.Developers who want open-source tooling with full control.Non-devs + solopreneurs shipping MVPs.
Strengths
  • Sources every claim
  • Fast, current answers
  • Pro Search runs multi-step research
  • Spaces for persistent context
  • Clean writing UX — distraction-free
  • +++ prompt triggers AI help
  • Collaboration + AI feedback together
  • Works in any terminal
  • Auto-commits changes with meaningful messages
  • Works with any model (Claude, GPT, local)
  • Minimal learning curve
  • Generates full apps + DB + auth
  • Good for non-developers
  • Ships faster than hand-coding
Weaknesses
  • Not a general chatbot
  • Answers can be shallow on complex topics
  • Less feature-rich than Google Docs
  • AI ceiling below dedicated tools
  • Terminal-only
  • Less agentic than Claude Code
  • Setup on Windows is fiddly
  • Complexity ceiling
  • Can generate brittle code
Kai's verdictS-tier for search. I use it before Google now. If you're still Googling everything, try this for a week.A-tier. Beautiful UX. The writing app I'd pick if I only wrote long-form.A-tier. The right answer if you want open-source + terminal-native + model-agnostic.A-tier. The strongest 'no-code' AI builder right now. Great for founder MVPs.
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