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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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Leonardo.ai
A
HeyGen
S
OpenRouter
S
Sora
A
TaglineGamer + creator image gen with model fine-tuning built in.AI avatar videos. Record once, speak any language.One API, every model. Pay-as-you-go, no subscriptions.OpenAI's video model. Long clips, cinematic quality.
CategoryImageVideoDev PlatformVideo
PricingFree + $12-$60/moFree + $24-$65/moPay per token — model-dependentIncluded with ChatGPT Plus/Pro
Best forIndie game devs, illustrators, anyone training custom style models.Course creators, multilingual marketers, anyone scaling video content.Developers experimenting across models. Apps that want fallback logic.ChatGPT subscribers experimenting with cinematic shots.
Strengths
  • Train your own models on your style/character
  • Great for game art + concept art
  • Generous free tier
  • Clone your face + voice in 2 minutes
  • Instant translation into 40+ languages with lip sync
  • Avatars look less uncanny than competitors
  • 300+ models from one endpoint
  • Automatic fallbacks between providers
  • No subscription — just pay what you use
  • Up to 20-sec clips at 1080p
  • Strong physics + scene composition
  • Storyboard feature for longer narratives
  • Remix existing videos
Weaknesses
  • General output behind Midjourney
  • Can be overwhelming
  • Pricey for serious volume
  • Long shots still feel off
  • Ethics — easy to misuse
  • Slight markup over direct API
  • Some provider features not exposed
  • Stricter content policy than competitors
  • Hit-or-miss on complex motion
  • Text-in-video still struggles
Kai's verdictA-tier for creators training custom looks. B-tier for general use.S-tier for multilingual video. If you sell courses or speak at events, this is a cheat code.S-tier for model-shopping. I use this for every prototype before committing.A-tier. Amazing when it works, frustrating when it doesn't. Runway still more reliable for pros.
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