RPI Supercomputer 2 is a large GPU cluster operated by Rensselaer Polytechnic Institute, located in the United States, in the public sector. It came online around June 2020. At that moment it ranked number 63 among known clusters.
It is built on 608 NVIDIA V100. That amounts to about 38.4 H100e of AI compute. The cluster draws roughly 0.4 MW. Its hardware is estimated at $12M.
Epoch AI rates the certainty of this record as confirmed.