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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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S
DeepSeek
S
Groq
S
HeyGen
S
TaglineRun any open-source AI model with an API call.Chinese open-weight powerhouse. Crazy cheap, genuinely smart.The fastest AI inference in the world. Crazy low latency.AI avatar videos. Record once, speak any language.
CategoryDev PlatformChatbotsDev PlatformVideo
PricingPay per second of computeFree web + ultra-cheap API (~$0.14/M input tokens)Free tier + pay-as-you-go APIFree + $24-$65/mo
Best forDevelopers using open-source models (Flux, SDXL, Whisper, etc).Developers + cost-conscious builders. Anyone fine with self-hosting.Developers who need sub-100ms LLM responses.Course creators, multilingual marketers, anyone scaling video content.
Strengths
  • Tens of thousands of models (image, video, audio, LLMs)
  • One-line API for any model
  • Cog framework for custom model deploy
  • Open weights you can self-host
  • Strong reasoning + math
  • Near-free API pricing
  • DeepSeek-V3 / R1 are serious models
  • 500+ tokens/sec on Llama/Mixtral — feels instant
  • Custom LPU hardware
  • Great free tier
  • Clone your face + voice in 2 minutes
  • Instant translation into 40+ languages with lip sync
  • Avatars look less uncanny than competitors
Weaknesses
  • Cold starts on less-popular models
  • Pricing gets real at scale
  • Data goes to servers in China — privacy concerns for business use
  • Chinese policy filters
  • English polish trails Western models
  • Open-weight models only (no Claude/GPT)
  • Less flexibility on custom configs
  • Pricey for serious volume
  • Long shots still feel off
  • Ethics — easy to misuse
Kai's verdictS-tier for open-source model APIs. The default in this space.S-tier for price/performance. A-tier for consumer use. If you build apps, this is the budget pick.S-tier for speed. When latency is the product, start here.S-tier for multilingual video. If you sell courses or speak at events, this is a cheat code.
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