nn ultra model

The term "NN Ultra model" doesn't have a widely recognized meaning in the fields of artificial intelligence or machine learning as of my last knowledge update in October 2023. However, it could refer to a specific type of neural network model or might be a branding term for a particular product or service related to neural networks. If you meant something specific or a certain context in which "NN Ultra model" is used (like a framework, library, or a new architecture), please provide more details so that I can give a more accurate and relevant response.