vLLM
An open-source, high-performance library for serving and running large language models with GPU-optimized inference and efficient memory and batch management.
At a Glance
Pricing
Open-source community distribution for self-hosted use.
Engagement
Available On
About vLLM
vLLM is an open-source library designed to deliver high-throughput, low-latency inference for large language models on GPU hardware. It focuses on efficient memory management, batching, and throughput optimizations to make serving transformer-based models faster and more resource-efficient. vLLM exposes a Python API and runtime components that let developers run and integrate models in self-hosted environments.
- High-performance inference: Optimized runtimes and batching strategies to maximize GPU utilization for transformer models.
- Memory-efficient management: Techniques for KV-cache and attention memory management to reduce GPU memory pressure.
- Python API and SDK: Programmatic interfaces for loading models, running inference, and integrating into applications.
- Support for common model formats: Designed to run models exported in widely used formats and to interoperate with popular model toolchains.
Getting started typically involves installing or building the library from source, preparing a GPU-enabled environment, loading a compatible model, and invoking the Python API to perform inference. The documentation provides guides on configuration, performance tuning, and deployment patterns for self-hosted inference services.

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Pricing
Free Plan Available
Open-source community distribution for self-hosted use.
- Open-source source code
- Self-hosted inference and deployment
- GPU-accelerated runtimes and performance optimizations
Capabilities
Key Features
- High-throughput GPU inference
- Batching and scheduling for concurrent requests
- Memory-efficient KV-cache and attention management
- Python API for model loading and inference
- Optimizations for transformer-based models