Analysis of SpaceXAI (xAI) indicates that a software rewrite is increasing model training efficiency by 33% more tokens/second/GPU, potentially allowing for new model shipments every 3.5 weeks. The efficiency gains in reinforcement learning are expected to save 8 weeks of training for 6T parameter models and 15 weeks for 10T models. Current performance for Grok 4.5 is bolstered by Cursor data, though a data bottleneck is anticipated as models approach the 20T parameter scale.