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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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Dev Platform
Agents
Voice
Video
Audio
Research
Coding
Chatbots
Image
Meetings
Design
Productivity
Writing
Data
Marketing
Education
Aider
A
Rows
A
MagicSchool
S
Fathom
S
TaglineTerminal-based AI pair programmer. Git-aware, model-flexible.Spreadsheets with AI + live integrations baked in.AI platform built for teachers. Lesson plans + IEPs + admin.Meeting notes, free forever for individuals.
CategoryCodingDataEducationMeetings
PricingFree (open source) + whatever API you useFree + $19-$89/user/moFree + $100/yr Plus + school plansFree for individuals + $15-$29/user/mo teams
Best forDevelopers who want open-source tooling with full control.Ops teams, marketers, anyone building dashboards from multiple sources.Teachers prepping materials. School districts.Solo operators, freelancers, small teams on a budget.
Strengths
  • Works in any terminal
  • Auto-commits changes with meaningful messages
  • Works with any model (Claude, GPT, local)
  • Minimal learning curve
  • Pull live data from Stripe, Slack, Google Analytics, etc.
  • AI functions inside cells
  • Modern UX
  • 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
  • Terminal-only
  • Less agentic than Claude Code
  • Setup on Windows is fiddly
  • Not a full Excel replacement for heavy users
  • Integrations best on paid tiers
  • Teacher-only focus
  • Less useful for students
  • Bot-joining model
  • Team features gated
Kai's verdictA-tier. The right answer if you want open-source + terminal-native + model-agnostic.A-tier. The most interesting spreadsheet in years. Great for ops dashboards.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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