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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
Luma Dream Machine
A
TaglineStability AI's open audio model. Loops + SFX + background.Smooth, cinematic motion. Image-to-video specialist.
CategoryAudioVideo
PricingFree + $12/mo Pro + enterpriseFree + $10-$500/mo
Best forGame developers, podcasters needing SFX, video creators needing background music.Photographers animating stills, cinematic b-roll.
Strengths
  • Open-weight model available
  • Great for loops + game audio + SFX
  • Commercial-use clarity
  • Best image-to-video in the category
  • Great camera motion control
  • Ray 2 model produces striking shots
Weaknesses
  • Not for full songs with vocals
  • Shorter generation limits
  • Prompt fidelity below Runway
  • Queue times on free tier
Kai's verdictA-tier for its niche. Different use case than Suno — SFX and loops, not songs.A-tier. Best for cinematic image-to-video. Pair with Runway for coverage.
LinkOpen →Open →