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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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Replicate
S
Stable Audio
A
Sora
A
Recraft
S
TaglineRun any open-source AI model with an API call.Stability AI's open audio model. Loops + SFX + background.OpenAI's video model. Long clips, cinematic quality.Vector + raster AI for designers. Actually controls the output.
CategoryDev PlatformAudioVideoImage
PricingPay per second of computeFree + $12/mo Pro + enterpriseIncluded with ChatGPT Plus/ProFree + $12-$48/mo
Best forDevelopers using open-source models (Flux, SDXL, Whisper, etc).Game developers, podcasters needing SFX, video creators needing background music.ChatGPT subscribers experimenting with cinematic shots.Designers, brand teams, anyone needing vector output or tight style control.
Strengths
  • Tens of thousands of models (image, video, audio, LLMs)
  • One-line API for any model
  • Cog framework for custom model deploy
  • Open-weight model available
  • Great for loops + game audio + SFX
  • Commercial-use clarity
  • Up to 20-sec clips at 1080p
  • Strong physics + scene composition
  • Storyboard feature for longer narratives
  • Remix existing videos
  • Exports SVG vectors — rare in AI image gen
  • Strong style control + consistency
  • Brand kit for consistent outputs
Weaknesses
  • Cold starts on less-popular models
  • Pricing gets real at scale
  • Not for full songs with vocals
  • Shorter generation limits
  • Stricter content policy than competitors
  • Hit-or-miss on complex motion
  • Text-in-video still struggles
  • Less hyped than Midjourney
  • Learning curve for non-designers
Kai's verdictS-tier for open-source model APIs. The default in this space.A-tier for its niche. Different use case than Suno — SFX and loops, not songs.A-tier. Amazing when it works, frustrating when it doesn't. Runway still more reliable for pros.S-tier for designers. The only one that takes vectors seriously.
LinkOpen →Open →Open →Open →