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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
DALL-E 3
B
Suno
S
Replicate
S
TaglineStability AI's open audio model. Loops + SFX + background.OpenAI's image model. Built into ChatGPT Plus.Prompt to full song with vocals, instruments, the works.Run any open-source AI model with an API call.
CategoryAudioImageAudioDev Platform
PricingFree + $12/mo Pro + enterpriseIncluded with ChatGPT Plus $20/moFree + $10/mo + $30/moPay per second of compute
Best forGame developers, podcasters needing SFX, video creators needing background music.ChatGPT Plus users who want images without paying extra.Jingles, intros, demos, sketches, personal use.Developers using open-source models (Flux, SDXL, Whisper, etc).
Strengths
  • Open-weight model available
  • Great for loops + game audio + SFX
  • Commercial-use clarity
  • Excellent prompt understanding
  • Built into ChatGPT — no extra subscription
  • Good at composition + concepts
  • Real songs with real lyrics
  • v4 is very good
  • Quick turnaround
  • 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
  • Aesthetic ceiling below Midjourney + Ideogram
  • Text rendering worse than Ideogram
  • No fine control
  • Copyright gray zone
  • Audio quality behind studio
  • 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.B-tier standalone, A-tier value if you already pay ChatGPT. Don't pay for it separately.S-tier in its category. The first AI music tool I'd actually listen to.S-tier for open-source model APIs. The default in this space.
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