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PSA: A bug crept in 3 weeks ago, that makes H3 run half as fast. Comfired twice now. Fixed below.

This story is from 2026-08-28. It is preserved in the archive; the latest stories are on the live feed.

Here's the issue MiniMax H3 video generation ~4x slower since v0.32.0 at full resolution - regression from #15486 (v = v.clone()) · Issue #15665 · Comfy-Org/ComfyUI And this is the line you need to remove: Fix peak memory issue with H3. by comfyanonymous · Pull Request #15486 · Comfy-Org/ComfyUI Re…

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  1. 2026-08-28 21:47 · r/comfyui
    PSA: A bug crept in 3 weeks ago, that makes H3 run half as fast. Comfired twice now. Fixed below.

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