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