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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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Perplexity
S
v0
S
Genspark
A
Rows
A
TaglineAI search done right. Cited answers, not chat theater.Vercel's AI-powered UI generator. Prompt to shadcn component.AI agent for deep search. Generates Sparkpages — full mini-reports.Spreadsheets with AI + live integrations baked in.
CategoryResearchDesignResearchData
PricingFree + $20/mo ProFree + $20/moFree + $25/mo PlusFree + $19-$89/user/mo
Best forReplacing Google for any question where you want a cited answer in seconds.Frontend devs, PMs prototyping UIs, anyone on Next.js.Travel planning, shopping comparisons, deep research where you want an artifact back.Ops teams, marketers, anyone building dashboards from multiple sources.
Strengths
  • Sources every claim
  • Fast, current answers
  • Pro Search runs multi-step research
  • Spaces for persistent context
  • Ships working React + Tailwind code
  • Shadcn/ui native
  • One-click deploy to Vercel
  • Sparkpages = curated multi-source mini-articles
  • Agent can book, compare, shop
  • Autopilot agent for long tasks
  • Pull live data from Stripe, Slack, Google Analytics, etc.
  • AI functions inside cells
  • Modern UX
Weaknesses
  • Not a general chatbot
  • Answers can be shallow on complex topics
  • Best for shadcn stack
  • Iterating can be fiddly
  • Early-stage — rough edges
  • Less reliable than Perplexity for simple questions
  • Not a full Excel replacement for heavy users
  • Integrations best on paid tiers
Kai's verdictS-tier for search. I use it before Google now. If you're still Googling everything, try this for a week.S-tier. If you're on Vercel/shadcn, this is cheating.A-tier. Bet on this one — the Sparkpage format is genuinely new.A-tier. The most interesting spreadsheet in years. Great for ops dashboards.
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