Instructor vs OpenRouter

FeatureInstructorOpenRouter
CategoryAI DevelopmentAI Development
PricingFree (open-source)Pay-per-use (varies by model)
GitHub Stars9,000—
PlatformsLinux, macOS, WindowsWeb
Features
  • ✓ Structured output
  • ✓ Pydantic models
  • ✓ Retry logic
  • ✓ Streaming
  • ✓ Multi-provider
  • ✓ 200+ models
  • ✓ Unified API
  • ✓ Auto-fallback
  • ✓ Rate limiting
  • ✓ Usage tracking
  • ✓ OpenAI-compatible
Tags
structured-outputpydanticpythonopen-source
apimulti-modelgatewayroutingpay-per-use