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First Hero Run Scheduled: PSI-32B Training Campaign on 192 GPUs
Begins Wednesday, May 27, 2026, 10:00 AM PDT
Marlowe’s first dedicated hero run is scheduled to begin Wednesday, May 27 at 10:00 AM PDT. Professor Dan Yamins’ team will hold a reservation across 24 nodes (192 H100 GPUs) for a 30-day campaign to train PSI-32B, a 32-billion-parameter counterfactual world model.
The campaign follows the February 2026 proof-of-concept, which validated brain-scale training on Marlowe at 45% model FLOPS utilization across the same 24 nodes.