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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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GitHub Copilot
B
Cline
A
MagicSchool
S
Fathom
S
TaglineMicrosoft/GitHub's autocomplete. Deep VS Code + JetBrains integration.Open-source VS Code agent. Reads + writes + runs.AI platform built for teachers. Lesson plans + IEPs + admin.Meeting notes, free forever for individuals.
CategoryCodingCodingEducationMeetings
PricingFree (limited) + $10/mo Pro + $19/mo BusinessFree (open source) + your API costsFree + $100/yr Plus + school plansFree for individuals + $15-$29/user/mo teams
Best forTeams with GitHub already. Devs who don't want to change IDEs.VS Code users who want agentic coding without changing IDEs.Teachers prepping materials. School districts.Solo operators, freelancers, small teams on a budget.
Strengths
  • Great enterprise story
  • Works in your existing IDE
  • Chat + autocomplete
  • Free extension for VS Code
  • Plan + Act modes
  • Model-agnostic (Claude, GPT, local)
  • Sees terminal output and iterates
  • 60+ teacher-specific tools
  • Generous free tier
  • FERPA + COPPA compliant for schools
  • Unlimited free tier for solo use
  • Strong summaries + action items
  • Works in Zoom, Meet, Teams
Weaknesses
  • Less agentic than Cursor/Claude Code
  • Model quality varies
  • Can burn tokens fast if not watched
  • Less polished than Cursor
  • Teacher-only focus
  • Less useful for students
  • Bot-joining model
  • Team features gated
Kai's verdictB-tier. Solid for autocomplete but the category moved past it. Pick Cursor unless you can't.A-tier. Best free agentic option in VS Code. Use with Claude for best results.S-tier for teachers. If you teach K-12, start here this week.S-tier for solo + free. The best free option, hands down.
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