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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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MagicSchool
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Hex
A
TaglineTerminal-based AI pair programmer. Git-aware, model-flexible.VS Code fork that made AI coding actually work.AI platform built for teachers. Lesson plans + IEPs + admin.Modern data notebook with Magic AI assistant.
CategoryCodingCodingEducationData
PricingFree (open source) + whatever API you useFree + $20/mo Pro + $40/mo BusinessFree + $100/yr Plus + school plansFree + $28+/user/mo
Best forDevelopers who want open-source tooling with full control.Developers. Non-developers who want to ship working code.Teachers prepping materials. School districts.Data teams at startups + enterprises.
Strengths
  • Works in any terminal
  • Auto-commits changes with meaningful messages
  • Works with any model (Claude, GPT, local)
  • Minimal learning curve
  • Tab completion feels like mind-reading
  • Composer for multi-file edits
  • Runs Claude, GPT, Gemini — you pick
  • 60+ teacher-specific tools
  • Generous free tier
  • FERPA + COPPA compliant for schools
  • SQL + Python + no-code in one notebook
  • Magic AI writes queries + viz for you
  • Team-grade collaboration
Weaknesses
  • Terminal-only
  • Less agentic than Claude Code
  • Setup on Windows is fiddly
  • Can feel overwhelming for non-coders
  • Expensive at scale
  • Teacher-only focus
  • Less useful for students
  • Overkill for casual users
  • Enterprise pricing
Kai's verdictA-tier. The right answer if you want open-source + terminal-native + model-agnostic.S-tier for coding. If you write code of any kind, this pays back the $20 in a day.S-tier for teachers. If you teach K-12, start here this week.A-tier for data teams. S-tier if you already live in SQL + Python.
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