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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
Claude Code
S
Cline
A
MagicSchool
S
TaglineMicrosoft/GitHub's autocomplete. Deep VS Code + JetBrains integration.Anthropic's CLI agent. Opus-powered, operates on your repo directly.Open-source VS Code agent. Reads + writes + runs.AI platform built for teachers. Lesson plans + IEPs + admin.
Categorycodingcodingcodingeducation
PricingFree (limited) + $10/mo Pro + $19/mo BusinessPart of Claude Pro/Max/Team plansFree (open source) + your API costsFree + $100/yr Plus + school plans
Best forTeams with GitHub already. Devs who don't want to change IDEs.Developers who want an agent, not autocomplete. Large refactors, tests, docs.VS Code users who want agentic coding without changing IDEs.Teachers prepping materials. School districts.
Strengths
  • Great enterprise story
  • Works in your existing IDE
  • Chat + autocomplete
  • Runs locally, edits your actual files
  • Strong on large codebases with 1M context
  • Great at multi-step tasks
  • 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
Weaknesses
  • Less agentic than Cursor/Claude Code
  • Model quality varies
  • Terminal-based — learning curve
  • Can't be used without Claude subscription
  • Can burn tokens fast if not watched
  • Less polished than Cursor
  • Teacher-only focus
  • Less useful for students
Kai's verdictB-tier. Solid for autocomplete but the category moved past it. Pick Cursor unless you can't.S-tier if you live in the terminal. Different shape than Cursor — complementary, not replacement.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.
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