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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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Lex
A
Pika
A
TaglineGoogle Docs with an AI collaborator baked in.The playful, accessible AI video tool.
CategoryWritingVideo
PricingFree + $12/moFree + $8-$58/mo
Best forEssays, long-form drafts, thinking on the page.Social media creators, beginners, anyone wanting quick fun clips.
Strengths
  • Clean writing UX — distraction-free
  • +++ prompt triggers AI help
  • Collaboration + AI feedback together
  • Ingredients feature — combine people, objects, scenes
  • Lip sync + sound effects
  • Fun, approachable UX
Weaknesses
  • Less feature-rich than Google Docs
  • AI ceiling below dedicated tools
  • Lower fidelity than Runway/Kling
  • Still rough on complex scenes
Kai's verdictA-tier. Beautiful UX. The writing app I'd pick if I only wrote long-form.A-tier for social/casual. B-tier for serious work. Good entry point.
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