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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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Cursor
S
Runway
S
Kling
A
TaglineVS Code fork that made AI coding actually work.The pro's AI video tool. Gen-4 is the current bar.Kuaishou's video model. The surprise standout.
Categorycodingvideovideo
PricingFree + $20/mo Pro + $40/mo BusinessFree + $15-$95/moCredit-based, free trial
Best forDevelopers. Non-developers who want to ship working code.Marketing video, pitch decks, b-roll, creative shorts.Anyone who wants top-tier video quality for less.
Strengths
  • Tab completion feels like mind-reading
  • Composer for multi-file edits
  • Runs Claude, GPT, Gemini — you pick
  • Most mature video workflow
  • Character consistency via Act-One
  • Gen-4 quality is production-grade
  • Very strong motion + physics
  • Often beats Runway on realism
  • Great price
Weaknesses
  • Can feel overwhelming for non-coders
  • Expensive at scale
  • Expensive at scale
  • Still needs post-editing
  • UX is rough for English speakers
  • Queue times
Kai's verdictS-tier for coding. If you write code of any kind, this pays back the $20 in a day.S-tier. Market leader with reason. Start here for serious video.A-tier. Rising fast. If you can tolerate the UX, quality per dollar is best-in-class.
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