From my cursory knowledge of the topic, there are competitors like ROCm, but CUDA was the first that had a useable solution here. Also last time I checked ROCm

From my cursory knowledge of the topic, there are competitors like ROCm, but CUDA was the first that had a useable solution here. Also last time I checked ROCm doesn't have broad support on consumer cards, which makes it harder for people to try it out at home. But it seems ROCm is getting better and it has tensorflow and pytorch support, so there's reasons to be hopeful to see some competition here.