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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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Video
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Image
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Kling
A
Groq
S
Replicate
S
Sora
A
TaglineKuaishou's video model. The surprise standout.The fastest AI inference in the world. Crazy low latency.Run any open-source AI model with an API call.OpenAI's video model. Long clips, cinematic quality.
CategoryVideoDev PlatformDev PlatformVideo
PricingCredit-based, free trialFree tier + pay-as-you-go APIPay per second of computeIncluded with ChatGPT Plus/Pro
Best forAnyone who wants top-tier video quality for less.Developers who need sub-100ms LLM responses.Developers using open-source models (Flux, SDXL, Whisper, etc).ChatGPT subscribers experimenting with cinematic shots.
Strengths
  • Very strong motion + physics
  • Often beats Runway on realism
  • Great price
  • 500+ tokens/sec on Llama/Mixtral — feels instant
  • Custom LPU hardware
  • Great free tier
  • Tens of thousands of models (image, video, audio, LLMs)
  • One-line API for any model
  • Cog framework for custom model deploy
  • Up to 20-sec clips at 1080p
  • Strong physics + scene composition
  • Storyboard feature for longer narratives
  • Remix existing videos
Weaknesses
  • UX is rough for English speakers
  • Queue times
  • Open-weight models only (no Claude/GPT)
  • Less flexibility on custom configs
  • Cold starts on less-popular models
  • Pricing gets real at scale
  • Stricter content policy than competitors
  • Hit-or-miss on complex motion
  • Text-in-video still struggles
Kai's verdictA-tier. Rising fast. If you can tolerate the UX, quality per dollar is best-in-class.S-tier for speed. When latency is the product, start here.S-tier for open-source model APIs. The default in this space.A-tier. Amazing when it works, frustrating when it doesn't. Runway still more reliable for pros.
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