LLM Weight Quantization in Production: Preventing Quality Regression with Calibration Sets, FP8/W4A16 Dual-Track Benchmarks, and Quality Gates
LLM weight quantization is more than just reduced VRAM. This guide covers calibration set selection, FP8/W4A16 dual-track benchmarking, hardware matching, quality gates, and canary rollouts using vLLM, LLM Compressor, and TensorRT-LLM.