Zhipu AI launched its latest open-weight model, GLM-5.3-Flash, f/k/a Ox Alpha, saying that the system ran entirely on a cluster of 100,000 domestically produced chips during a high-profile stealth trial.

‘Ox Alpha’ is one of the most powerful artificial intelligence systems ever seen – but nobody is taking credit for it

Ox Alpha is topping benchmark scores, reads a million tokens, takes video as input, and has developers guessing who built it.