NVIDIA supplies the simulation, world models and agent skills. Nebius runs them on its Physical AI Workbench. Sereact's Cortex is the robot brain they train. The initial rollout targets Zalando’s returns handling at CEVA Logistics’ fulfilment center—one of the most variable processes in eCommerce logistics.
Sereact, NVIDIA, Nebius, CEVA Logistics and Zalando today announced a closed training loop for Cortex, Sereact's robot brain. The first deployment is Zalando returns handling in selected CEVA Logistics fulfillment centers. NVIDIA provides Isaac Sim, Isaac Lab, Cosmos and its Physical AI Data Factory skills. Operated through the company’s EU data centers, Nebius runs them on the Physical AI Workbench, its open-source framework for physical AI. Sereact brings Cortex and the episodes its robots record on the returns line. What a robot gets wrong on Monday can come back as a tested policy update within days, where it used to take weeks.
Returns are among the hardest warehouse processes to automate. Each item arrives in whatever state the customer left it: refolded or crumpled, in its polybag or loose, with or without tags. A robot has to pick it, identify it, check its condition and sort it, while the assortment changes every season. Cortex learns from real picks, but real picks only cover items that have already passed through a station. Improving the policy meant collecting episodes on site, retraining, testing on the robot and starting over. Each cycle took weeks and covered only the cases a team could stage by hand. (....)