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TaglineRun any open-source AI model with an API call.The fastest AI inference in the world. Crazy low latency.Kuaishou's video model. The surprise standout.
CategoryDev PlatformDev PlatformVideo
PricingPay per second of computeFree tier + pay-as-you-go APICredit-based, free trial
Best forDevelopers using open-source models (Flux, SDXL, Whisper, etc).Developers who need sub-100ms LLM responses.Anyone who wants top-tier video quality for less.
Strengths
  • Tens of thousands of models (image, video, audio, LLMs)
  • One-line API for any model
  • Cog framework for custom model deploy
  • 500+ tokens/sec on Llama/Mixtral — feels instant
  • Custom LPU hardware
  • Great free tier
  • Very strong motion + physics
  • Often beats Runway on realism
  • Great price
Weaknesses
  • Cold starts on less-popular models
  • Pricing gets real at scale
  • Open-weight models only (no Claude/GPT)
  • Less flexibility on custom configs
  • UX is rough for English speakers
  • Queue times
Kai's verdictS-tier for open-source model APIs. The default in this space.S-tier for speed. When latency is the product, start here.A-tier. Rising fast. If you can tolerate the UX, quality per dollar is best-in-class.
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