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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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Devin
A
Khanmigo
S
GitHub Copilot
B
Gamma
A
TaglineCognition Labs' autonomous coding engineer.Khan Academy's AI tutor. Socratic method, built for learning.Microsoft/GitHub's autocomplete. Deep VS Code + JetBrains integration.AI slide decks that don't look AI-generated.
CategoryAgentsEducationCodingProductivity
Pricing$500/mo$4/mo (free for teachers)Free (limited) + $10/mo Pro + $19/mo BusinessFree + $10-$20/mo
Best forEngineering teams offloading tickets. Ops/platform work.Students K-12. Parents helping with homework. Teachers prepping lessons.Teams with GitHub already. Devs who don't want to change IDEs.Pitch decks, proposals, internal presentations — fast.
Strengths
  • Works like an engineer — takes Slack tasks, opens PRs
  • Handles multi-hour engineering work
  • Reports back with what it did
  • Socratic — doesn't give answers, asks questions
  • Trusted by schools + parents
  • Integrated with Khan Academy curriculum
  • Great enterprise story
  • Works in your existing IDE
  • Chat + autocomplete
  • Strong templates
  • Decks, docs, webpages
  • Doesn't look generic
Weaknesses
  • Expensive
  • Best for well-scoped tasks
  • Not for solo hobbyists
  • K-12 focus (not deep for adults)
  • Slower than general chatbots
  • Less agentic than Cursor/Claude Code
  • Model quality varies
  • Locked into Gamma's format
  • Export quality varies
Kai's verdictA-tier for the right use case. Not for solo devs. If you manage engineers, try one license.S-tier for kids learning. The tutoring UX is legit — not a generic chatbot dressed up.B-tier. Solid for autocomplete but the category moved past it. Pick Cursor unless you can't.A-tier. Best of a boring category. Use it for first drafts, then edit in Keynote if high-stakes.
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