When I repeatedly fine tune a custom model, it appears that the Base Model is not “updated”, but a new model is created as the Output Model. Is this correct? So if I tune a custom model 5 times I will have six models in the system at that point?
And would I then need to delete the old custom models if I don’t want to proliferate unused intermediate models.
Yes, if you successively fine-tune a fine-tuned model, the original model isn’t affected. Instead a new fine-tuned model is created with the previously fine-tuned model as its base model.