Haystack vs OpenRouter

FeatureHaystackOpenRouter
CategoryAI DevelopmentAI Development
PricingFree (open-source)Pay-per-use (varies by model)
GitHub Stars18,000—
PlatformsLinux, macOS, Windows, DockerWeb
Features
  • ✓ Pipeline builder
  • ✓ RAG
  • ✓ Document processing
  • ✓ Model serving
  • ✓ REST API
  • ✓ 200+ models
  • ✓ Unified API
  • ✓ Auto-fallback
  • ✓ Rate limiting
  • ✓ Usage tracking
  • ✓ OpenAI-compatible
Tags
ragnlppipelineopen-source
apimulti-modelgatewayroutingpay-per-use