LLM Quantization Explained: Run Bigger Models on Less RAM
March 15, 2026 · 10 min read
LLM quantization is a compression technique that shrinks a language model’s memory footprint by storing its parameters in lower-precision number formats — for example, using 4 bits per weight instead of 16. This lets you run models that would normally require 14 GB of RAM in under 4 GB, with surprisingly little quality loss. If you have ever wondered how people run 70-billion-parameter models on a laptop, or what “Q4_K_M” means on a Hugging Face download page, this guide explains it from the ground up.