I've run large GPU clusters on OCI, quite happily. The hardware and interconnects are very good - NVIDIA has a good relationship with them because they are one

I've run large GPU clusters on OCI, quite happily. The hardware and interconnects are very good - NVIDIA has a good relationship with them because they are one of the clouds not making their own silicon. GPU clusters are Oracle's path to breaking into top tier of the clouds and IMO they do it well. It's the high-level services where OCI is worth avoiding. Even core tech like object storage has been a problem.