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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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OpenRouter
S
Google Veo
A
Udio
A
Replicate
S
TaglineOne API, every model. Pay-as-you-go, no subscriptions.Google's video model. Baked into Gemini + YouTube Shorts.Suno's main rival. Often better on instrumental nuance.Run any open-source AI model with an API call.
CategoryDev PlatformVideoAudioDev Platform
PricingPay per token — model-dependentIncluded with Gemini Advanced $20/mo + YouTube creator toolsFree + $10-$30/moPay per second of compute
Best forDevelopers experimenting across models. Apps that want fallback logic.Gemini Advanced users, YouTube Shorts creators.Musicians comparing AI outputs. Anyone who didn't click with Suno.Developers using open-source models (Flux, SDXL, Whisper, etc).
Strengths
  • 300+ models from one endpoint
  • Automatic fallbacks between providers
  • No subscription — just pay what you use
  • Included with Gemini Advanced
  • YouTube Shorts native integration
  • Strong prompt understanding
  • Strong instrumentals + genre fidelity
  • Extend/remix features
  • Good lyric understanding
  • Tens of thousands of models (image, video, audio, LLMs)
  • One-line API for any model
  • Cog framework for custom model deploy
Weaknesses
  • Slight markup over direct API
  • Some provider features not exposed
  • Still catching up on quality vs Kling/Runway
  • Less control than pros need
  • Same copyright gray zone as Suno
  • Ecosystem smaller
  • Cold starts on less-popular models
  • Pricing gets real at scale
Kai's verdictS-tier for model-shopping. I use this for every prototype before committing.A-tier if you already pay Gemini. B-tier standalone.A-tier. Genuinely different vibe from Suno — worth trying both for a month.S-tier for open-source model APIs. The default in this space.
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