Keras is one of the leading high-level neural networks APIs. It is written in Python and supports multiple back-end neural network computation engines.

Keras also allows you to drop down even farther, to the Python coding level, by subclassing keras.Model, but prefers the functional API when possible.

Our data science doctor provides a hands-on neural networking tutorial to explain how to get started with the popular Keras library, a high-level wrapper over TensorFlow.