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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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Gamma
A
Lovable
A
HeyGen
S
Duolingo Max
A
TaglineAI slide decks that don't look AI-generated.Build a full app from a prompt. Stripe-ready.AI avatar videos. Record once, speak any language.Duolingo + AI. Explain My Answer + Roleplay features.
CategoryProductivityDesignVideoEducation
PricingFree + $10-$20/moFree + $25-$100/moFree + $24-$65/mo$30/mo (or ~$168/yr)
Best forPitch decks, proposals, internal presentations — fast.Non-devs + solopreneurs shipping MVPs.Course creators, multilingual marketers, anyone scaling video content.Language learners who've outgrown basic Duolingo.
Strengths
  • Strong templates
  • Decks, docs, webpages
  • Doesn't look generic
  • Generates full apps + DB + auth
  • Good for non-developers
  • Ships faster than hand-coding
  • Clone your face + voice in 2 minutes
  • Instant translation into 40+ languages with lip sync
  • Avatars look less uncanny than competitors
  • Explain My Answer = personal tutor for every mistake
  • Roleplay = real conversation practice
  • Gamification that actually sticks
Weaknesses
  • Locked into Gamma's format
  • Export quality varies
  • Complexity ceiling
  • Can generate brittle code
  • Pricey for serious volume
  • Long shots still feel off
  • Ethics — easy to misuse
  • Pricey vs free Duolingo
  • Conversation AI still stiff sometimes
Kai's verdictA-tier. Best of a boring category. Use it for first drafts, then edit in Keynote if high-stakes.A-tier. The strongest 'no-code' AI builder right now. Great for founder MVPs.S-tier for multilingual video. If you sell courses or speak at events, this is a cheat code.A-tier. If you already love Duolingo, worth it. If starting fresh, try ChatGPT Voice instead.
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