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Compare AI tools

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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Audio
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OpenRouter
S
Stable Audio
A
Claude Code
S
Luma Dream Machine
A
TaglineOne API, every model. Pay-as-you-go, no subscriptions.Stability AI's open audio model. Loops + SFX + background.Anthropic's CLI agent. Opus-powered, operates on your repo directly.Smooth, cinematic motion. Image-to-video specialist.
CategoryDev PlatformAudioCodingVideo
PricingPay per token — model-dependentFree + $12/mo Pro + enterprisePart of Claude Pro/Max/Team plansFree + $10-$500/mo
Best forDevelopers experimenting across models. Apps that want fallback logic.Game developers, podcasters needing SFX, video creators needing background music.Developers who want an agent, not autocomplete. Large refactors, tests, docs.Photographers animating stills, cinematic b-roll.
Strengths
  • 300+ models from one endpoint
  • Automatic fallbacks between providers
  • No subscription — just pay what you use
  • Open-weight model available
  • Great for loops + game audio + SFX
  • Commercial-use clarity
  • Runs locally, edits your actual files
  • Strong on large codebases with 1M context
  • Great at multi-step tasks
  • Best image-to-video in the category
  • Great camera motion control
  • Ray 2 model produces striking shots
Weaknesses
  • Slight markup over direct API
  • Some provider features not exposed
  • Not for full songs with vocals
  • Shorter generation limits
  • Terminal-based — learning curve
  • Can't be used without Claude subscription
  • Prompt fidelity below Runway
  • Queue times on free tier
Kai's verdictS-tier for model-shopping. I use this for every prototype before committing.A-tier for its niche. Different use case than Suno — SFX and loops, not songs.S-tier if you live in the terminal. Different shape than Cursor — complementary, not replacement.A-tier. Best for cinematic image-to-video. Pair with Runway for coverage.
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