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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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Cursor
S
Windsurf
A
MagicSchool
S
Replicate
S
TaglineVS Code fork that made AI coding actually work.Codeium's agentic IDE. Cascade agent + strong free tier.AI platform built for teachers. Lesson plans + IEPs + admin.Run any open-source AI model with an API call.
Categorycodingcodingeducationdev platform
PricingFree + $20/mo Pro + $40/mo BusinessFree + $15/mo ProFree + $100/yr Plus + school plansPay per second of compute
Best forDevelopers. Non-developers who want to ship working code.Developers who want Cursor-like power for less money.Teachers prepping materials. School districts.Developers using open-source models (Flux, SDXL, Whisper, etc).
Strengths
  • Tab completion feels like mind-reading
  • Composer for multi-file edits
  • Runs Claude, GPT, Gemini — you pick
  • Cheaper than Cursor
  • Cascade agent for multi-file tasks
  • Solid free tier
  • 60+ teacher-specific tools
  • Generous free tier
  • FERPA + COPPA compliant for schools
  • Tens of thousands of models (image, video, audio, LLMs)
  • One-line API for any model
  • Cog framework for custom model deploy
Weaknesses
  • Can feel overwhelming for non-coders
  • Expensive at scale
  • Smaller community
  • Model selection more limited
  • Teacher-only focus
  • Less useful for students
  • Cold starts on less-popular models
  • Pricing gets real at scale
Kai's verdictS-tier for coding. If you write code of any kind, this pays back the $20 in a day.A-tier. Close second to Cursor. If $5/mo matters, start here.S-tier for teachers. If you teach K-12, start here this week.S-tier for open-source model APIs. The default in this space.
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