nx_vram_estimate.nx

nx_vram_estimate.nx -- SOVEREIGN VRAM footprint estimator for DiT inference (Z-Image + LTX) under levers. Breaks peak VRAM into weights + attention-scores + activations (MB), and shows how each O(n) lever moves it: FlashAttention -> scores O(n^2) -> ~O(d) (matrix never built) DC-AE -> tokens 16x fewer -> scores + activations collapse Q4 quant -> weights bytes/param down (orthogonal; included for completeness) MoE + offload -> resident weights = active/streamed subset, not the full model Integer math in MB. No 3rd party. Numbers are first-order (dominant terms), for budgeting not billing. license_tier: ORIGINAL