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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
Sora
A
GitHub Copilot
B
Hume AI
A
TaglineDuolingo + AI. Explain My Answer + Roleplay features.OpenAI's video model. Long clips, cinematic quality.Microsoft/GitHub's autocomplete. Deep VS Code + JetBrains integration.Voice AI that reads + expresses emotion.
CategoryEducationVideoCodingVoice
Pricing$30/mo (or ~$168/yr)Included with ChatGPT Plus/ProFree (limited) + $10/mo Pro + $19/mo BusinessFree tier + pay-as-you-go
Best forLanguage learners who've outgrown basic Duolingo.ChatGPT subscribers experimenting with cinematic shots.Teams with GitHub already. Devs who don't want to change IDEs.Therapy apps, customer service, any voice agent where emotion matters.
Strengths
  • Explain My Answer = personal tutor for every mistake
  • Roleplay = real conversation practice
  • Gamification that actually sticks
  • Up to 20-sec clips at 1080p
  • Strong physics + scene composition
  • Storyboard feature for longer narratives
  • Remix existing videos
  • Great enterprise story
  • Works in your existing IDE
  • Chat + autocomplete
  • Detects + mirrors emotional tone
  • EVI (Empathic Voice Interface) feels different
  • Expressive voice output
Weaknesses
  • Pricey vs free Duolingo
  • Conversation AI still stiff sometimes
  • Stricter content policy than competitors
  • Hit-or-miss on complex motion
  • Text-in-video still struggles
  • Less agentic than Cursor/Claude Code
  • Model quality varies
  • Niche use case
  • Pricing ramps fast
Kai's verdictA-tier. If you already love Duolingo, worth it. If starting fresh, try ChatGPT Voice instead.A-tier. Amazing when it works, frustrating when it doesn't. Runway still more reliable for pros.B-tier. Solid for autocomplete but the category moved past it. Pick Cursor unless you can't.A-tier in its niche. The only one that actually gets emotion right.
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