SGLang

Key Features

What the engine gives you out of the box, in plain language.

• OpenAI-Compatible API
• NVIDIA GPU
• AMD GPU
• Apple Silicon
• CPU Inference
• Quantization
• Continuous Batching
• Multi-GPU
• Desktop GUI
• One-Line Install
• Structured Output
• Streaming

• RadixAttention

  Caches and reuses shared prompt prefixes across requests to save compute.

• Constrained decoding

  Force output to match a JSON schema or grammar at high speed.

• OpenAI-compatible server

  Serves a familiar API so most existing clients connect without changes.

Where It Shines

The jobs this engine is best suited for.

• Agent and pipeline serving

  Workloads that reuse the same context across many calls benefit from prefix caching.

• Structured data extraction

  Force valid JSON out of a model at production speed.

• High-volume production serving

  An alternative to vLLM when you want top throughput plus structured output.

Frequently Asked Questions