NVIDIA In-house DGX A100 Cluster is a large GPU cluster operated by NVIDIA, located in the United States, in the private sector. It came online around May 2020. At that moment it ranked number 17 among known clusters.
It is built on 400 NVIDIA A100. That amounts to about 126 H100e of AI compute. The cluster draws roughly 0.35 MW. Its hardware is estimated at $11M.
Epoch AI rates the certainty of this record as likely. 50 nodes x 8 A100 per node