I used PyTorch since it came out, and at the time it outperformed TF1 on computer vision workloads quite handily, in addition to being much easier to work with.

I used PyTorch since it came out, and at the time it outperformed TF1 on computer vision workloads quite handily, in addition to being much easier to work with. I literally watched the entire departments in one of the major research labs where I worked at the time switch to PyTorch in the span of a couple of months.