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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
Lex
A
ChatGPT Operator
B
MagicSchool
S
TaglineVS Code fork that made AI coding actually work.Google Docs with an AI collaborator baked in.OpenAI's browser agent. Clicks and types on websites for you.AI platform built for teachers. Lesson plans + IEPs + admin.
CategoryCodingWritingAgentsEducation
PricingFree + $20/mo Pro + $40/mo BusinessFree + $12/moIncluded with ChatGPT Pro $200/moFree + $100/yr Plus + school plans
Best forDevelopers. Non-developers who want to ship working code.Essays, long-form drafts, thinking on the page.Power users willing to pay $200/mo for a browser bot.Teachers prepping materials. School districts.
Strengths
  • Tab completion feels like mind-reading
  • Composer for multi-file edits
  • Runs Claude, GPT, Gemini — you pick
  • Clean writing UX — distraction-free
  • +++ prompt triggers AI help
  • Collaboration + AI feedback together
  • Actually uses websites — fills forms, clicks, checks out
  • Built into ChatGPT
  • Good for repetitive web tasks
  • 60+ teacher-specific tools
  • Generous free tier
  • FERPA + COPPA compliant for schools
Weaknesses
  • Can feel overwhelming for non-coders
  • Expensive at scale
  • Less feature-rich than Google Docs
  • AI ceiling below dedicated tools
  • Slow vs doing it yourself
  • Breaks on complex auth flows
  • $200/mo gate
  • Teacher-only focus
  • Less useful for students
Kai's verdictS-tier for coding. If you write code of any kind, this pays back the $20 in a day.A-tier. Beautiful UX. The writing app I'd pick if I only wrote long-form.B-tier. Still early. Manus is more flexible for less money.S-tier for teachers. If you teach K-12, start here this week.
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