Are Caffe and Caffe2 two different frameworks?
Due to its unrivalled speed and well-tested C++ codebase, the original Caffe framework was ideal for large-scale product use cases. Caffe2 is a deep learning framework that makes it simple to experiment with deep learning and leverage new models and algorithms offered by the community. With Caffe2's cross-platform frameworks, you can scale your ideas leveraging the power of GPUs in the cloud or to the masses on mobile.