ZOE makes serving GLM-5.3-Flash on MI300X profitable. At 64 sessions per node and full utilization, each MI300X makes $2.95 an hour in profit after its $2.02/hr rent. Stock SGLang makes $0.13.
Running 96 sessions earns more, but p90 TTFT rises from 2.9s to 21.8s, so we run 64.
