LLM inference nondeterminism means identical prompts can return different outputs even at temperature 0, because dynamic batching changes the order of floating-point reductions inside GPU kernels — a property called batch invariance. Thinking Machines Lab measured 80 distinct completions from 1,000 identical requests on Qwen3-235B, and researchers documented up to …
vLLM vs TensorRT-LLM vs SGLang: H100 Benchmarks 2026
Choosing between vLLM, TensorRT-LLM, and SGLang in 2026 comes down to three questions: how many models you serve, how fast you need to go live, and whether your workload shares prefixes. Benchmarks on H100 80GB with Llama 3.3 70B at FP8 show TensorRT-LLM delivering 13% higher throughput than vLLM at …