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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
Flux (Black Forest Labs)
A
Kling
A
TaglineVS Code fork that made AI coding actually work.Open weights + strong photorealism. The open-source answer.Kuaishou's video model. The surprise standout.
Categorycodingimagevideo
PricingFree + $20/mo Pro + $40/mo BusinessAPI + open weights (Schnell is Apache 2.0)Credit-based, free trial
Best forDevelopers. Non-developers who want to ship working code.Developers + power users who want control and privacy.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
  • Runs locally on a beefy GPU
  • Very photoreal
  • Best open-weight model
  • Very strong motion + physics
  • Often beats Runway on realism
  • Great price
Weaknesses
  • Can feel overwhelming for non-coders
  • Expensive at scale
  • Harder to use than hosted tools
  • Needs infra
  • 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.A-tier. S-tier if you self-host. The reason open-source image gen matters.A-tier. Rising fast. If you can tolerate the UX, quality per dollar is best-in-class.
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