How to Run 70B LLMs on a 4GB GPU: Low-VRAM Inference Guide [2026]

Your GPU has 4GB of VRAM. Every tutorial you find says you need at least 24GB — ideally 80GB — to run anything serious. A 70B model is 140GB of weights in FP16. The math doesn&rsquo;t work, so you assume local AI is out of reach. That assumption is wrong. In 2026, running 70B-class models on a 4GB card is a solved problem — not with heroic hacks, but with three well-understood techniques:…