Yandex Chervonenkis is a large GPU cluster operated by Yandex, located in Russia, in the private sector. It came online around November 2021. At that moment it ranked number 23 among known clusters.
It is built on 1,592 NVIDIA A100 SXM4 80 GB. That amounts to about 502 H100e of AI compute. The cluster draws roughly 1.37 MW. Its hardware is estimated at $65M.
Epoch AI rates the certainty of this record as confirmed.