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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
ChatGPT Operator
B
DALL-E 3
B
Perplexity
S
TaglineChinese open-weight powerhouse. Crazy cheap, genuinely smart.OpenAI's browser agent. Clicks and types on websites for you.OpenAI's image model. Built into ChatGPT Plus.AI search done right. Cited answers, not chat theater.
CategoryChatbotsAgentsImageResearch
PricingFree web + ultra-cheap API (~$0.14/M input tokens)Included with ChatGPT Pro $200/moIncluded with ChatGPT Plus $20/moFree + $20/mo Pro
Best forDevelopers + cost-conscious builders. Anyone fine with self-hosting.Power users willing to pay $200/mo for a browser bot.ChatGPT Plus users who want images without paying extra.Replacing Google for any question where you want a cited answer in seconds.
Strengths
  • Open weights you can self-host
  • Strong reasoning + math
  • Near-free API pricing
  • DeepSeek-V3 / R1 are serious models
  • Actually uses websites — fills forms, clicks, checks out
  • Built into ChatGPT
  • Good for repetitive web tasks
  • Excellent prompt understanding
  • Built into ChatGPT — no extra subscription
  • Good at composition + concepts
  • Sources every claim
  • Fast, current answers
  • Pro Search runs multi-step research
  • Spaces for persistent context
Weaknesses
  • Data goes to servers in China — privacy concerns for business use
  • Chinese policy filters
  • English polish trails Western models
  • Slow vs doing it yourself
  • Breaks on complex auth flows
  • $200/mo gate
  • Aesthetic ceiling below Midjourney + Ideogram
  • Text rendering worse than Ideogram
  • No fine control
  • Not a general chatbot
  • Answers can be shallow on complex topics
Kai's verdictS-tier for price/performance. A-tier for consumer use. If you build apps, this is the budget pick.B-tier. Still early. Manus is more flexible for less money.B-tier standalone, A-tier value if you already pay ChatGPT. Don't pay for it separately.S-tier for search. I use it before Google now. If you're still Googling everything, try this for a week.
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