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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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DeepSeek
S
Lovable
A
Gemini
A
ChatGPT Operator
B
TaglineChinese open-weight powerhouse. Crazy cheap, genuinely smart.Build a full app from a prompt. Stripe-ready.Google's answer. Best integrated with Workspace + free for a lot.OpenAI's browser agent. Clicks and types on websites for you.
CategoryChatbotsDesignChatbotsAgents
PricingFree web + ultra-cheap API (~$0.14/M input tokens)Free + $25-$100/moFree + $20/mo Advanced (bundled with 2TB Drive)Included with ChatGPT Pro $200/mo
Best forDevelopers + cost-conscious builders. Anyone fine with self-hosting.Non-devs + solopreneurs shipping MVPs.Anyone already on Google, research tasks, summarizing long documents.Power users willing to pay $200/mo for a browser bot.
Strengths
  • Open weights you can self-host
  • Strong reasoning + math
  • Near-free API pricing
  • DeepSeek-V3 / R1 are serious models
  • Generates full apps + DB + auth
  • Good for non-developers
  • Ships faster than hand-coding
  • Native Google Workspace integration
  • Very long context (1M+)
  • Deep Research feature
  • Free tier is generous
  • Actually uses websites — fills forms, clicks, checks out
  • Built into ChatGPT
  • Good for repetitive web tasks
Weaknesses
  • Data goes to servers in China — privacy concerns for business use
  • Chinese policy filters
  • English polish trails Western models
  • Complexity ceiling
  • Can generate brittle code
  • Writing quality trails Claude
  • Over-refusals on edge content
  • UI is cluttered
  • Slow vs doing it yourself
  • Breaks on complex auth flows
  • $200/mo gate
Kai's verdictS-tier for price/performance. A-tier for consumer use. If you build apps, this is the budget pick.A-tier. The strongest 'no-code' AI builder right now. Great for founder MVPs.A-tier. The Deep Research feature is genuinely useful. Don't sleep on it if you're already paying Google.B-tier. Still early. Manus is more flexible for less money.
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