[bradleyjg]

This isn't art. There are no points for originality. If open source projects borrow the best parts from each other, that's a good thing.

[ychujo2]

It's not a bad thing. It's good for users. But give credit to the leaders in the field. If you make an iPod clone, you call it an iPod clone, not a clone of the Zume HD.

Chainer started it, was around years earlier, and it still has more users. So Google is not copying PyTorch, it's copying Chainer.

[arbie]

Do you have a source for Chainer currently having more users than TensorFlow?

[Narew]

Not more users than Tensorflow. But maybe more user than other dynamic deeplearning framework (PyTorch, Gluon, DyNet...)

[chrisprobert]

Totally agree!