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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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Cursor
S
Perplexity
S
Khanmigo
S
Gamma
A
TaglineVS Code fork that made AI coding actually work.AI search done right. Cited answers, not chat theater.Khan Academy's AI tutor. Socratic method, built for learning.AI slide decks that don't look AI-generated.
CategoryCodingResearchEducationProductivity
PricingFree + $20/mo Pro + $40/mo BusinessFree + $20/mo Pro$4/mo (free for teachers)Free + $10-$20/mo
Best forDevelopers. Non-developers who want to ship working code.Replacing Google for any question where you want a cited answer in seconds.Students K-12. Parents helping with homework. Teachers prepping lessons.Pitch decks, proposals, internal presentations — fast.
Strengths
  • Tab completion feels like mind-reading
  • Composer for multi-file edits
  • Runs Claude, GPT, Gemini — you pick
  • Sources every claim
  • Fast, current answers
  • Pro Search runs multi-step research
  • Spaces for persistent context
  • Socratic — doesn't give answers, asks questions
  • Trusted by schools + parents
  • Integrated with Khan Academy curriculum
  • Strong templates
  • Decks, docs, webpages
  • Doesn't look generic
Weaknesses
  • Can feel overwhelming for non-coders
  • Expensive at scale
  • Not a general chatbot
  • Answers can be shallow on complex topics
  • K-12 focus (not deep for adults)
  • Slower than general chatbots
  • Locked into Gamma's format
  • Export quality varies
Kai's verdictS-tier for coding. If you write code of any kind, this pays back the $20 in a day.S-tier for search. I use it before Google now. If you're still Googling everything, try this for a week.S-tier for kids learning. The tutoring UX is legit — not a generic chatbot dressed up.A-tier. Best of a boring category. Use it for first drafts, then edit in Keynote if high-stakes.
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