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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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Stable Audio
A
Gemini
A
Recraft
S
Replicate
S
TaglineStability AI's open audio model. Loops + SFX + background.Google's answer. Best integrated with Workspace + free for a lot.Vector + raster AI for designers. Actually controls the output.Run any open-source AI model with an API call.
CategoryAudioChatbotsImageDev Platform
PricingFree + $12/mo Pro + enterpriseFree + $20/mo Advanced (bundled with 2TB Drive)Free + $12-$48/moPay per second of compute
Best forGame developers, podcasters needing SFX, video creators needing background music.Anyone already on Google, research tasks, summarizing long documents.Designers, brand teams, anyone needing vector output or tight style control.Developers using open-source models (Flux, SDXL, Whisper, etc).
Strengths
  • Open-weight model available
  • Great for loops + game audio + SFX
  • Commercial-use clarity
  • Native Google Workspace integration
  • Very long context (1M+)
  • Deep Research feature
  • Free tier is generous
  • Exports SVG vectors — rare in AI image gen
  • Strong style control + consistency
  • Brand kit for consistent outputs
  • Tens of thousands of models (image, video, audio, LLMs)
  • One-line API for any model
  • Cog framework for custom model deploy
Weaknesses
  • Not for full songs with vocals
  • Shorter generation limits
  • Writing quality trails Claude
  • Over-refusals on edge content
  • UI is cluttered
  • Less hyped than Midjourney
  • Learning curve for non-designers
  • Cold starts on less-popular models
  • Pricing gets real at scale
Kai's verdictA-tier for its niche. Different use case than Suno — SFX and loops, not songs.A-tier. The Deep Research feature is genuinely useful. Don't sleep on it if you're already paying Google.S-tier for designers. The only one that takes vectors seriously.S-tier for open-source model APIs. The default in this space.
LinkOpen →Open →Open →Open →