Z Image Introduces HSWQ Hybrid Quantization for Lower VRAM Usage

Z Image releases the HSWQ hybrid quantization method with a ComfyUI loader, combining ConvRot INT8 and ConvRot NVFP4 based on trajectory sensitivity. It significantly reduces VRAM usage while NVFP4 image generation quality outperforms the native model.

2026-08-19 ~ 2026-08-19 · 2 related posts

• HSWQ quantization outperforms native NVFP4 for image generation — Zestyclose_Bake3680 · 2026-08-19
• Z Image Introduces Trajectory-Sensitivity Quantization Theory — Zestyclose_Bake3680 · 2026-08-19