Wanted to resurface this thread. I am also experiencing the same issues with Create ML with a 26-class dataset where each class has 3000 images. Similar @amlawson98, Create ML seems to error out in the early 4000s for images. I also followed the same steps for zero-dimensional images. For a dataset with so many classes, the ability to only have 4000 or so images isn't the most ideal as that is a pretty sparse amount of data of each class for the model to train on. I am using a dataset on Kaggle, but I can't link it here due to forum rules. Other specs: 16" MacBook Pro with M1 Pro, Create ML Version 5.0 (121.3), Xcode Version 15.1 (15C65).