Google developed and open sourced TensorFlow and Keras. The other 2 open sourced AI projects worth mentioning: Sparkling Water ACUMOS AI project, a complete environment for full lifecycle AI app development, based on LF Deep Learning Foundation At the same time, Facebook hsas PyTorch, Caffe2 Microsoft has CNTK Theano Google I/O 2018 has demonstrated Google Duplex, natural language processing based on Recurrent Neural Network the technology behind explained in Analyticsvidhya tensorflow on raspberry pi tensorflow site magpi