PARAM Siddhi-AI Phase 1 is a large GPU cluster operated by Center for Development of Advanced Computing (C-DAC), located in India, in the public sector. It came online around November 2020. At that moment it ranked number 26 among known clusters.
It is built on 336 NVIDIA A100. That amounts to about 106 H100e of AI compute. The cluster draws roughly 0.29 MW. Its hardware is estimated at $9M.
Epoch AI rates the certainty of this record as confirmed. 8 GPUs per node