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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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Claude Code
S
Flux (Black Forest Labs)
A
Runway
S
TaglineAnthropic's CLI agent. Opus-powered, operates on your repo directly.Open weights + strong photorealism. The open-source answer.The pro's AI video tool. Gen-4 is the current bar.
Categorycodingimagevideo
PricingPart of Claude Pro/Max/Team plansAPI + open weights (Schnell is Apache 2.0)Free + $15-$95/mo
Best forDevelopers who want an agent, not autocomplete. Large refactors, tests, docs.Developers + power users who want control and privacy.Marketing video, pitch decks, b-roll, creative shorts.
Strengths
  • Runs locally, edits your actual files
  • Strong on large codebases with 1M context
  • Great at multi-step tasks
  • Runs locally on a beefy GPU
  • Very photoreal
  • Best open-weight model
  • Most mature video workflow
  • Character consistency via Act-One
  • Gen-4 quality is production-grade
Weaknesses
  • Terminal-based — learning curve
  • Can't be used without Claude subscription
  • Harder to use than hosted tools
  • Needs infra
  • Expensive at scale
  • Still needs post-editing
Kai's verdictS-tier if you live in the terminal. Different shape than Cursor — complementary, not replacement.A-tier. S-tier if you self-host. The reason open-source image gen matters.S-tier. Market leader with reason. Start here for serious video.
LinkOpen →Open →Open →