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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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Sora
A
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A
Kling
A
Perplexity
S
TaglineOpenAI's video model. Long clips, cinematic quality.Google Docs with an AI collaborator baked in.Kuaishou's video model. The surprise standout.AI search done right. Cited answers, not chat theater.
CategoryVideoWritingVideoResearch
PricingIncluded with ChatGPT Plus/ProFree + $12/moCredit-based, free trialFree + $20/mo Pro
Best forChatGPT subscribers experimenting with cinematic shots.Essays, long-form drafts, thinking on the page.Anyone who wants top-tier video quality for less.Replacing Google for any question where you want a cited answer in seconds.
Strengths
  • Up to 20-sec clips at 1080p
  • Strong physics + scene composition
  • Storyboard feature for longer narratives
  • Remix existing videos
  • Clean writing UX — distraction-free
  • +++ prompt triggers AI help
  • Collaboration + AI feedback together
  • Very strong motion + physics
  • Often beats Runway on realism
  • Great price
  • Sources every claim
  • Fast, current answers
  • Pro Search runs multi-step research
  • Spaces for persistent context
Weaknesses
  • Stricter content policy than competitors
  • Hit-or-miss on complex motion
  • Text-in-video still struggles
  • Less feature-rich than Google Docs
  • AI ceiling below dedicated tools
  • UX is rough for English speakers
  • Queue times
  • Not a general chatbot
  • Answers can be shallow on complex topics
Kai's verdictA-tier. Amazing when it works, frustrating when it doesn't. Runway still more reliable for pros.A-tier. Beautiful UX. The writing app I'd pick if I only wrote long-form.A-tier. Rising fast. If you can tolerate the UX, quality per dollar is best-in-class.S-tier for search. I use it before Google now. If you're still Googling everything, try this for a week.
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