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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
Runway
S
DeepSeek
S
Replicate
S
TaglineAnthropic's CLI agent. Opus-powered, operates on your repo directly.The pro's AI video tool. Gen-4 is the current bar.Chinese open-weight powerhouse. Crazy cheap, genuinely smart.Run any open-source AI model with an API call.
Categorycodingvideochatdev platform
PricingPart of Claude Pro/Max/Team plansFree + $15-$95/moFree web + ultra-cheap API (~$0.14/M input tokens)Pay per second of compute
Best forDevelopers who want an agent, not autocomplete. Large refactors, tests, docs.Marketing video, pitch decks, b-roll, creative shorts.Developers + cost-conscious builders. Anyone fine with self-hosting.Developers using open-source models (Flux, SDXL, Whisper, etc).
Strengths
  • Runs locally, edits your actual files
  • Strong on large codebases with 1M context
  • Great at multi-step tasks
  • Most mature video workflow
  • Character consistency via Act-One
  • Gen-4 quality is production-grade
  • Open weights you can self-host
  • Strong reasoning + math
  • Near-free API pricing
  • DeepSeek-V3 / R1 are serious models
  • Tens of thousands of models (image, video, audio, LLMs)
  • One-line API for any model
  • Cog framework for custom model deploy
Weaknesses
  • Terminal-based — learning curve
  • Can't be used without Claude subscription
  • Expensive at scale
  • Still needs post-editing
  • Data goes to servers in China — privacy concerns for business use
  • Chinese policy filters
  • English polish trails Western models
  • Cold starts on less-popular models
  • Pricing gets real at scale
Kai's verdictS-tier if you live in the terminal. Different shape than Cursor — complementary, not replacement.S-tier. Market leader with reason. Start here for serious video.S-tier for price/performance. A-tier for consumer use. If you build apps, this is the budget pick.S-tier for open-source model APIs. The default in this space.
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