I don’t have the models folder in garrysmod/garrymod/! I know i’ve had it before and I used it alot! (I searched for the .mdl file i was looking for in GarrysMod main folder and nothing showed up, but I could spawn it in game)
They are in the garrysmod_dir.vpk, you open it with latest GCFScape. Just google the tool. But you don’t actually need them in models directory. If you are searching some specific model, use spawnmenu, if you want to put some models into GMod, create the folder.