It's just a python wrapper around Torch, an open source C program by a Swiss non-profit, so META could compete with TensorFlow of Google.
I don't know why this is celebrated so much, a big company rebranding a non-profit for profit.
But I guess that's the norm for AI now.
Wait, PyTorch and the ecosystem are much more than just that. You can't be serious?
It's just Torch for idiots