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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
Hex
A
DALL-E 3
B
Khanmigo
S
TaglineAI search done right. Cited answers, not chat theater.Modern data notebook with Magic AI assistant.OpenAI's image model. Built into ChatGPT Plus.Khan Academy's AI tutor. Socratic method, built for learning.
CategoryResearchDataImageEducation
PricingFree + $20/mo ProFree + $28+/user/moIncluded with ChatGPT Plus $20/mo$4/mo (free for teachers)
Best forReplacing Google for any question where you want a cited answer in seconds.Data teams at startups + enterprises.ChatGPT Plus users who want images without paying extra.Students K-12. Parents helping with homework. Teachers prepping lessons.
Strengths
  • 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
  • Excellent prompt understanding
  • Built into ChatGPT — no extra subscription
  • Good at composition + concepts
  • Socratic — doesn't give answers, asks questions
  • Trusted by schools + parents
  • Integrated with Khan Academy curriculum
Weaknesses
  • Not a general chatbot
  • Answers can be shallow on complex topics
  • Overkill for casual users
  • Enterprise pricing
  • Aesthetic ceiling below Midjourney + Ideogram
  • Text rendering worse than Ideogram
  • No fine control
  • K-12 focus (not deep for adults)
  • Slower than general chatbots
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 for data teams. S-tier if you already live in SQL + Python.B-tier standalone, A-tier value if you already pay ChatGPT. Don't pay for it separately.S-tier for kids learning. The tutoring UX is legit — not a generic chatbot dressed up.
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