Ox Alpha Was GLM-5.3-Flash: Z.ai Ships MIT Weights After a 62-Trillion-Token Stealth Run

Ox Alpha has a name. Z.ai claimed the cloaked OpenRouter model on August 26 as GLM-5.3-Flash, a 320B-A18B natively multimodal mixture-of-experts model with MIT weights on Hugging Face, and says the entire anonymous preview ran on a cluster of Chinese AI chips. The viral 100 trillion tokens per day figure, though, was never a measurement.