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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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S
Windsurf
A
v0
S
TaglineAI search done right. Cited answers, not chat theater.Codeium's agentic IDE. Cascade agent + strong free tier.Vercel's AI-powered UI generator. Prompt to shadcn component.
CategoryResearchCodingDesign
PricingFree + $20/mo ProFree + $15/mo ProFree + $20/mo
Best forReplacing Google for any question where you want a cited answer in seconds.Developers who want Cursor-like power for less money.Frontend devs, PMs prototyping UIs, anyone on Next.js.
Strengths
  • Sources every claim
  • Fast, current answers
  • Pro Search runs multi-step research
  • Spaces for persistent context
  • Cheaper than Cursor
  • Cascade agent for multi-file tasks
  • Solid free tier
  • Ships working React + Tailwind code
  • Shadcn/ui native
  • One-click deploy to Vercel
Weaknesses
  • Not a general chatbot
  • Answers can be shallow on complex topics
  • Smaller community
  • Model selection more limited
  • Best for shadcn stack
  • Iterating can be fiddly
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. Close second to Cursor. If $5/mo matters, start here.S-tier. If you're on Vercel/shadcn, this is cheating.
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