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Devin
A
Lovable
A
Perplexity
S
v0
S
TaglineCognition Labs' autonomous coding engineer.Build a full app from a prompt. Stripe-ready.AI search done right. Cited answers, not chat theater.Vercel's AI-powered UI generator. Prompt to shadcn component.
Categoryagentsdesignresearchdesign
Pricing$500/moFree + $25-$100/moFree + $20/mo ProFree + $20/mo
Best forEngineering teams offloading tickets. Ops/platform work.Non-devs + solopreneurs shipping MVPs.Replacing Google for any question where you want a cited answer in seconds.Frontend devs, PMs prototyping UIs, anyone on Next.js.
Strengths
  • Works like an engineer — takes Slack tasks, opens PRs
  • Handles multi-hour engineering work
  • Reports back with what it did
  • Generates full apps + DB + auth
  • Good for non-developers
  • Ships faster than hand-coding
  • 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
Weaknesses
  • Expensive
  • Best for well-scoped tasks
  • Not for solo hobbyists
  • Complexity ceiling
  • Can generate brittle code
  • Not a general chatbot
  • Answers can be shallow on complex topics
  • Best for shadcn stack
  • Iterating can be fiddly
Kai's verdictA-tier for the right use case. Not for solo devs. If you manage engineers, try one license.A-tier. The strongest 'no-code' AI builder right now. Great for founder MVPs.S-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.
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