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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
GitHub Copilot
B
Google Veo
A
Replicate
S
TaglineOne API, every model. Pay-as-you-go, no subscriptions.Microsoft/GitHub's autocomplete. Deep VS Code + JetBrains integration.Google's video model. Baked into Gemini + YouTube Shorts.Run any open-source AI model with an API call.
Categorydev platformcodingvideodev platform
PricingPay per token — model-dependentFree (limited) + $10/mo Pro + $19/mo BusinessIncluded with Gemini Advanced $20/mo + YouTube creator toolsPay per second of compute
Best forDevelopers experimenting across models. Apps that want fallback logic.Teams with GitHub already. Devs who don't want to change IDEs.Gemini Advanced users, YouTube Shorts creators.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
  • Great enterprise story
  • Works in your existing IDE
  • Chat + autocomplete
  • Included with Gemini Advanced
  • YouTube Shorts native integration
  • Strong prompt 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
  • Less agentic than Cursor/Claude Code
  • Model quality varies
  • Still catching up on quality vs Kling/Runway
  • Less control than pros need
  • 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.B-tier. Solid for autocomplete but the category moved past it. Pick Cursor unless you can't.A-tier if you already pay Gemini. B-tier standalone.S-tier for open-source model APIs. The default in this space.
LinkOpen →Open →Open →Open →