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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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Duolingo Max
A
Claude Code
S
Rows
A
Suno
S
TaglineDuolingo + AI. Explain My Answer + Roleplay features.Anthropic's CLI agent. Opus-powered, operates on your repo directly.Spreadsheets with AI + live integrations baked in.Prompt to full song with vocals, instruments, the works.
CategoryEducationCodingDataAudio
Pricing$30/mo (or ~$168/yr)Part of Claude Pro/Max/Team plansFree + $19-$89/user/moFree + $10/mo + $30/mo
Best forLanguage learners who've outgrown basic Duolingo.Developers who want an agent, not autocomplete. Large refactors, tests, docs.Ops teams, marketers, anyone building dashboards from multiple sources.Jingles, intros, demos, sketches, personal use.
Strengths
  • Explain My Answer = personal tutor for every mistake
  • Roleplay = real conversation practice
  • Gamification that actually sticks
  • Runs locally, edits your actual files
  • Strong on large codebases with 1M context
  • Great at multi-step tasks
  • Pull live data from Stripe, Slack, Google Analytics, etc.
  • AI functions inside cells
  • Modern UX
  • Real songs with real lyrics
  • v4 is very good
  • Quick turnaround
Weaknesses
  • Pricey vs free Duolingo
  • Conversation AI still stiff sometimes
  • Terminal-based — learning curve
  • Can't be used without Claude subscription
  • Not a full Excel replacement for heavy users
  • Integrations best on paid tiers
  • Copyright gray zone
  • Audio quality behind studio
Kai's verdictA-tier. If you already love Duolingo, worth it. If starting fresh, try ChatGPT Voice instead.S-tier if you live in the terminal. Different shape than Cursor — complementary, not replacement.A-tier. The most interesting spreadsheet in years. Great for ops dashboards.S-tier in its category. The first AI music tool I'd actually listen to.
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