AI Engineering

Sep 3, 2026 · Artificial Intelligence

VDN-H3 Generates 14-Second 768p Video in 11 Seconds: 75x Speedup Over MiniMax H3

OpenVDN's VDN-H3 achieves 75x speedup over MiniMax H3 by combining sliding-window softmax attention with a novel frame-level Video Delta Attention, generating 14.4 seconds of 768p video in 11.23 seconds on 8 NVIDIA B200 GPUs while preserving visual quality.