What is the difference between vLLM, TGI, and TensorRT-LLM?
LLM Engineer Interview Questions: Choosing Between OpenAI, Anthropic, Open Source Models, and Self-Hosting
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What is the difference between vLLM, TGI, and TensorRT-LLM?
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vLLM is an open-source inference server known for PagedAttention and continuous batching, popular for ease of use. TGI, Text Generation Inference from Hugging Face, is another open server with strong production features. TensorRT-LLM from Nvidia is highly optimized for Nvidia hardware with the best raw performance, at the cost of more setup complexity. All three are widely used in 2026.
docs.vllm.ai