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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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Runway
S
Pika
A
Kling
A
Sora
A
TaglineThe pro's AI video tool. Gen-4 is the current bar.The playful, accessible AI video tool.Kuaishou's video model. The surprise standout.OpenAI's video model. Long clips, cinematic quality.
Categoryvideovideovideovideo
PricingFree + $15-$95/moFree + $8-$58/moCredit-based, free trialIncluded with ChatGPT Plus/Pro
Best forMarketing video, pitch decks, b-roll, creative shorts.Social media creators, beginners, anyone wanting quick fun clips.Anyone who wants top-tier video quality for less.ChatGPT subscribers experimenting with cinematic shots.
Strengths
  • Most mature video workflow
  • Character consistency via Act-One
  • Gen-4 quality is production-grade
  • Ingredients feature — combine people, objects, scenes
  • Lip sync + sound effects
  • Fun, approachable UX
  • Very strong motion + physics
  • Often beats Runway on realism
  • Great price
  • Up to 20-sec clips at 1080p
  • Strong physics + scene composition
  • Storyboard feature for longer narratives
  • Remix existing videos
Weaknesses
  • Expensive at scale
  • Still needs post-editing
  • Lower fidelity than Runway/Kling
  • Still rough on complex scenes
  • UX is rough for English speakers
  • Queue times
  • Stricter content policy than competitors
  • Hit-or-miss on complex motion
  • Text-in-video still struggles
Kai's verdictS-tier. Market leader with reason. Start here for serious video.A-tier for social/casual. B-tier for serious work. Good entry point.A-tier. Rising fast. If you can tolerate the UX, quality per dollar is best-in-class.A-tier. Amazing when it works, frustrating when it doesn't. Runway still more reliable for pros.
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