I believe besides the legacy Nvidia cards, Alibaba has built training clusters from domestic AI accelerator vendor like https://e.huawei.com/en/products/computi

I believe besides the legacy Nvidia cards, Alibaba has built training clusters from domestic AI accelerator vendor like https://e.huawei.com/en/products/computing/ascend https://e.huawei.com/en/products/computing/ascend. But that means a lot of extra in-house engineering work to utilize those niche hardware.