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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
Perplexity
S
Cursor
S
Pika
A
TaglineDuolingo + AI. Explain My Answer + Roleplay features.AI search done right. Cited answers, not chat theater.VS Code fork that made AI coding actually work.The playful, accessible AI video tool.
CategoryEducationResearchCodingVideo
Pricing$30/mo (or ~$168/yr)Free + $20/mo ProFree + $20/mo Pro + $40/mo BusinessFree + $8-$58/mo
Best forLanguage learners who've outgrown basic Duolingo.Replacing Google for any question where you want a cited answer in seconds.Developers. Non-developers who want to ship working code.Social media creators, beginners, anyone wanting quick fun clips.
Strengths
  • Explain My Answer = personal tutor for every mistake
  • Roleplay = real conversation practice
  • Gamification that actually sticks
  • Sources every claim
  • Fast, current answers
  • Pro Search runs multi-step research
  • Spaces for persistent context
  • Tab completion feels like mind-reading
  • Composer for multi-file edits
  • Runs Claude, GPT, Gemini — you pick
  • Ingredients feature — combine people, objects, scenes
  • Lip sync + sound effects
  • Fun, approachable UX
Weaknesses
  • Pricey vs free Duolingo
  • Conversation AI still stiff sometimes
  • Not a general chatbot
  • Answers can be shallow on complex topics
  • Can feel overwhelming for non-coders
  • Expensive at scale
  • Lower fidelity than Runway/Kling
  • Still rough on complex scenes
Kai's verdictA-tier. If you already love Duolingo, worth it. If starting fresh, try ChatGPT Voice instead.S-tier for search. I use it before Google now. If you're still Googling everything, try this for a week.S-tier for coding. If you write code of any kind, this pays back the $20 in a day.A-tier for social/casual. B-tier for serious work. Good entry point.
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