Forensic TCO audit: H100 GPU rental fell from $8.50 to $3.99/GPU-hr by September 2026. AWS p5.48xlarge costs $55.04/hr list but $9.85+/GPU-hr all-in after egress, FSx, VPC fees, and enterprise support taxes. Full break-even math, InfiniBand MFU comparison, and GPU MSA negotiation playbook — by Pooja Iyer, EyesTech Systems Lab.