Chinese pretrained embodied model Wall-OSS-0.5 is open sourced

刚刚，国产预训练具身大模型开源了，让后训练不再是必选项！

X Square Robot open sourced Wall-OSS-0.5, a VLA model whose 400k pretraining checkpoint scored above 80 on 4 of 17 real-robot zero-shot tasks, with weights, code, training recipe, ablations, and a DMuon optimizer implementation released.

Why it matters: Clear HKR-H/K/R: a 400k checkpoint and 17 real-robot zero-shot tasks add substance, while “post-training not required” is a sharp hook. X Square Robot is not a top foundation-model lab, so this stays at 79.