[thelastidiot]

According to this [0] blog, it it:

PyTorch 1.0 takes the modular, production-oriented capabilities from Caffe2 and ONNX and combines them with PyTorch's existing flexible, research-focused design to provide a fast, seamless path from research prototyping to production deployment for a broad range of AI projects.

[0] https://developers.facebook.com/blog/post/2018/05/02/announc...