I Ran a 637MB LLM on My Base MacBook Air, and Now I’m Questioning Everything

A weekend experiment turned into a small revelation about where AI is actually heading. No GPU. No cloud. No API key. Just a tiny model and a laptop fan that didn’t even spin up. I wasn’t expecting much. It was a quiet evening, my MacBook Air was sitting on the kitchen counter, and I had this nagging itch to try one of those “tiny” local LLMs everyone keeps tweeting about. You know the type. The ones people swear are “almost as good as GPT” if you squint hard enough. So I downloaded a 637MB model. Yes, megabytes. Not gigabytes. The kind of file that fits on a USB stick I lost in 2014.