https://unsloth.ai/docs/models/qwen3.5#qwen3.5-27b “ Qwen3.5-27B For this guide we will be utilizing Dynamic 4-bit which works great on a 18GB RAM”

18GB was an odd 3-channel one-off for the M3 Pros. I guess there's a bunch of them out there, but how slow would 27B be on it, due to not being an MOE model.