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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
Lovable
A
ChatGPT Operator
B
Aider
A
TaglineAI search done right. Cited answers, not chat theater.Build a full app from a prompt. Stripe-ready.OpenAI's browser agent. Clicks and types on websites for you.Terminal-based AI pair programmer. Git-aware, model-flexible.
Categoryresearchdesignagentscoding
PricingFree + $20/mo ProFree + $25-$100/moIncluded with ChatGPT Pro $200/moFree (open source) + whatever API you use
Best forReplacing Google for any question where you want a cited answer in seconds.Non-devs + solopreneurs shipping MVPs.Power users willing to pay $200/mo for a browser bot.Developers who want open-source tooling with full control.
Strengths
  • Sources every claim
  • Fast, current answers
  • Pro Search runs multi-step research
  • Spaces for persistent context
  • Generates full apps + DB + auth
  • Good for non-developers
  • Ships faster than hand-coding
  • Actually uses websites — fills forms, clicks, checks out
  • Built into ChatGPT
  • Good for repetitive web tasks
  • Works in any terminal
  • Auto-commits changes with meaningful messages
  • Works with any model (Claude, GPT, local)
  • Minimal learning curve
Weaknesses
  • Not a general chatbot
  • Answers can be shallow on complex topics
  • Complexity ceiling
  • Can generate brittle code
  • Slow vs doing it yourself
  • Breaks on complex auth flows
  • $200/mo gate
  • Terminal-only
  • Less agentic than Claude Code
  • Setup on Windows is 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. The strongest 'no-code' AI builder right now. Great for founder MVPs.B-tier. Still early. Manus is more flexible for less money.A-tier. The right answer if you want open-source + terminal-native + model-agnostic.
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