AI BriefingMiniMax-H3-experimental: 1.5x VAE Decoding Speedup in ComfyUI 0.31.0
Kijai/MiniMax-H3-experimental
About the project
This is an experimental video generation model that runs in environments with ComfyUI 0.31.0 or higher. It applies the w4a8 format, combining 4-bit weights with int8-convrot activations, to improve memory efficiency.
The key improvement is faster VAE decoding. By using an int8_convrot-based VAE, it provides output speeds approximately 1.5x faster than before. However, if the ComfyUI version is not matched, the output will be a black screen.
A ref lora reflecting the differences between fl2va and ref2va is included, but its use cases remain unclear. This is a test-only configuration that assumes the application of ComfyUI PR #15958 and comfy-kitchen PR #117.
It is suitable for developers looking to verify the latest ComfyUI features and low-bit quantization effects, rather than for stable production environments. As it is in an experimental stage, be prepared for unexpected errors.
Kijai/MiniMax-H3-experimental
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