Eni HPC4 Phase 2 is a large GPU cluster operated by Eni, located in Italy, in the private sector. It came online around October 2021. At that moment it ranked number 82 among known clusters.
It is built on 250 NVIDIA A100, alongside NVIDIA V100. That amounts to about 78.83 H100e of AI compute. The cluster draws roughly 1.99 MW. Its hardware is estimated at $60M.
Epoch AI rates the certainty of this record as confirmed.