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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
S
GitHub Copilot
B
Perplexity
S
Play.ht
A
TaglineAI platform built for teachers. Lesson plans + IEPs + admin.Microsoft/GitHub's autocomplete. Deep VS Code + JetBrains integration.AI search done right. Cited answers, not chat theater.Enterprise-grade TTS with voice cloning.
Categoryeducationcodingresearchvoice
PricingFree + $100/yr Plus + school plansFree (limited) + $10/mo Pro + $19/mo BusinessFree + $20/mo ProFree + $39-$99/mo
Best forTeachers prepping materials. School districts.Teams with GitHub already. Devs who don't want to change IDEs.Replacing Google for any question where you want a cited answer in seconds.Podcasters + enterprises where cost matters.
Strengths
  • 60+ teacher-specific tools
  • Generous free tier
  • FERPA + COPPA compliant for schools
  • Great enterprise story
  • Works in your existing IDE
  • Chat + autocomplete
  • Sources every claim
  • Fast, current answers
  • Pro Search runs multi-step research
  • Spaces for persistent context
  • Strong API + enterprise features
  • Good voice variety
  • Lower cost than ElevenLabs at scale
Weaknesses
  • Teacher-only focus
  • Less useful for students
  • Less agentic than Cursor/Claude Code
  • Model quality varies
  • Not a general chatbot
  • Answers can be shallow on complex topics
  • Voice realism slightly behind ElevenLabs
  • UX less polished
Kai's verdictS-tier for teachers. If you teach K-12, start here this week.B-tier. Solid for autocomplete but the category moved past it. Pick Cursor unless you can't.S-tier for search. I use it before Google now. If you're still Googling everything, try this for a week.A-tier. Great price/performance. Go here if ElevenLabs is too expensive.
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