OpenNN is an open-source software library that implements neural networks for machine learning. This library can be used to solve various real-world applications in energy, marketing, healthcare, and more. It provides sophisticated algorithms and utilities for tasks such as regression, classification, forecasting, and association. OpenNN offers higher capacity, allowing it to handle larger data sets compared to TensorFlow and PyTorch. It also offers faster training speeds, making it more efficient for model development. With over 50,000 users, OpenNN has a strong user base in both research and enterprise. Additionally, the library is developed by Artelnics, a consulting company specialized in artificial intelligence and big data. They also offer consulting services to help businesses get the best results from their data. OpenNN is the foundation for Neural Designer, a user-friendly software tool that simplifies neural network model building without programming.