Transformer
Electrical machine that steps voltage between grid, distribution, and rack levels; among the longest-lead-time items in a build and a frequent schedule gate.
Also written as: Transformers
Current numbers
25T tokenslongest documented 4-bit pre-training run (12B Mamba-Transformer, NVFP4); 62.58% vs 62.62% MMLU-Pro vs FP8
~128–160+ wkHV/substation power transformer lead time (standard); up to ~60 months in constrained markets — often the schedule's long pole
~128–160+ wklarge power transformer lead time (~144 wk GSU); up to ~5 yr in constrained markets — the schedule-dominating long pole