Zhipu AI shares jump as viral Ox Alpha model revealed as GLM-5.3-Flash on Chinese chips

SCMP TechAugust 27, 2026en

China’s Zhipu AI has launched its latest open-weight model, GLM-5.3-Flash – previously code-named Ox Alpha – saying that the system ran entirely on a cluster of 100,000 domestically produced chips during a high-profile stealth trial. The announcement followed a week of heavy traffic on artificial intelligence model marketplace OpenRouter and agent platform OpenCode, where the model processed 62 trillion tokens before its formal release on Wednesday, according to Zhipu. On OpenRouter, the system...

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