Instructor vs vLLM

FeatureInstructorvLLM
CategoryAI DevelopmentLocal AI Infrastructure
PricingFree (open-source)Free (open-source)
GitHub Stars9,00045,000
PlatformsLinux, macOS, WindowsLinux
Features
  • ✓ Structured output
  • ✓ Pydantic models
  • ✓ Retry logic
  • ✓ Streaming
  • ✓ Multi-provider
  • ✓ PagedAttention
  • ✓ Continuous batching
  • ✓ Tensor parallelism
  • ✓ OpenAI-compatible API
  • ✓ Multi-GPU
  • ✓ Quantization
Tags
structured-outputpydanticpythonopen-source
open-sourceinferenceservinggpuhigh-throughput