Chengyu Shi

W4A4 Quantization for Inference on Wan2.2-I2V-A14B

Yidong Chen, Chengyu Shi, Jiahao Liu

We summarize our submission to Sub-Challenge 1: W4A4 Quantization for Inference (HiF4 / MXFP4) of the ICME 2026 Low-Bit-width Large-Model Quantization Challenge. The sub-challenge targets 4-bit weight and 4-bit activation inference on Wan-AI/Wan2.2-I2V-A14B under HiF4 or MXFP4 nu…Read more