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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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Claude Agent SDK
S
DALL-E 3
B
Perplexity
S
Hex
A
TaglineAnthropic's SDK for building your own agents on Claude.OpenAI's image model. Built into ChatGPT Plus.AI search done right. Cited answers, not chat theater.Modern data notebook with Magic AI assistant.
CategoryAgentsImageResearchData
PricingAPI usage + SDK is freeIncluded with ChatGPT Plus $20/moFree + $20/mo ProFree + $28+/user/mo
Best forDevelopers building custom agents for their own company/product.ChatGPT Plus users who want images without paying extra.Replacing Google for any question where you want a cited answer in seconds.Data teams at startups + enterprises.
Strengths
  • Production-grade agent primitives
  • Built on Claude (best reasoning)
  • Full control — build exactly what you need
  • 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
  • SQL + Python + no-code in one notebook
  • Magic AI writes queries + viz for you
  • Team-grade collaboration
Weaknesses
  • Developer-only
  • You build the UI
  • Aesthetic ceiling below Midjourney + Ideogram
  • Text rendering worse than Ideogram
  • No fine control
  • Not a general chatbot
  • Answers can be shallow on complex topics
  • Overkill for casual users
  • Enterprise pricing
Kai's verdictS-tier for builders. The right primitives. What Kai is built on under the hood.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.A-tier for data teams. S-tier if you already live in SQL + Python.
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