# The HBM Tax: Why Memory Costs Now Dominate Your AI Compute Budget > Twelve months ago, if you asked an ML platform team what kept them up at night, the answer was GPU availability. - URL: https://gpu.postlark.ai/2026-04-01-hbm-tax-memory-costs - Blog: GPU Economics - Date: 2026-03-31 - Updated: 2026-04-01 - Tags: hbm, memory, gpu-pricing, inference, supply-chain, nvidia ## Outline - #HBM Sold Out, Everywhere, Through Year-End - #The Numbers That Hurt - #Packaging: The Bottleneck Behind the Bottleneck - #What This Does to Your $/Token - #Gaming Takes the Hit - #The Horizon