Community speeds up MiniMax H3 video generation with sparse attention

A community developer integrated the Jev method into MiniMax H3 to sparsify attention, deciding per layer which parts to keep. On an RTX 4070, video generation time dropped from 6 min 7 sec to 3 min 34 sec, a 41.7% reduction. The post notes that Jev selected sparsity rates of 1%, 3%, 5%, and 10% across 49 layers in 4-step generation.