nTtau Digital LTD was established in 2022 to extend capabilities of the WSI fusion costing framework to include FEM and other modeling of each cost element, placing each into an AI optimization loop, to train surrogates and find cost optimizations in rapid iterative cycles (days not years). The purpose of the company is to significantly shorten the time to a complete FOAK reactor design point, and perform design iterations in silico to arrive at a NOAK before construction, saving 100's of M$.