Keras is a high-level neural networks API, written in Python and capable of running on top of TensorFlow, CNTK, or Theano. It was developed with a focus on enabling fast experimentation. Being able to go from idea to result with the least possible delay is key to doing good research.
Use Keras if you need a deep learning library that:
-->Allows for easy and fast prototyping (through user friendliness, modularity, and extensibility).
-->Supports both convolutional networks and recurrent networks, as well as combinations of the two.
-->Runs seamlessly on CPU and GPU.
Keras is compatible with: Python 2.7-3.6.