Zettabyte, a global AI computing company, today announced the general availability of Model-as-a-Service on zCLOUD, its GPU cloud. Teams can efficiently call open-source models through API on Zettabyte’s NVIDIA H100, H200, B200 and B300 GPUs. Model-as-a-Service hosts popular open weight and open-source models, ready to call through an API and run on Zettabyte’s GPUs. GPU instances are available for short-term capacity, reserved clusters for sustained training, and private cloud deployments for custom needs.