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Z.ai says new AI model runs only on Chinese chips; shares rise 8%

Chinese AI firm Z.ai says its new model runs only on domestic chips; shares jumped over 8% on the news.

The new model, called GLM-5.3-Flash, is a low-cost version of Z.ai's flagship model. It ranks 10th on the Artificial Analysis Intelligence Index, ahead of DeepSeek V4 Pro Max.

Z.ai said it used 100,000 China-made chips to handle all online requests for GLM-5.3-Flash, including during its Aug. 20 release under the code name "Ox Alpha." The model was the most-used on the global OpenRouter platform in the past week, according to CNBC.

CNBC could not independently verify Z.ai's chip claims. The company declined to name the chip suppliers. Running an AI model requires less computing power than training one.

Washington and Beijing have imposed restrictions that make it difficult for Nvidia to sell chips to China. Meanwhile, Huawei and other Chinese companies have ramped up efforts to build alternatives. China has boosted domestic semiconductor and AI capabilities in pursuit of technological self-sufficiency. Leading U.S. AI models also are not officially available in China.

Z.ai rival MiniMax's Hong Kong shares rose about 3% after the company reported a 283% surge in first-half revenue from a year earlier. Its adjusted net loss more than doubled to $293 million. MiniMax's M3 model ranks 18th on the Artificial Analysis Intelligence Index.

Z.ai is scheduled to report first-half results on Monday. Both AI companies listed in Hong Kong in January. Z.ai shares have skyrocketed more than 800% since their IPO, while MiniMax shares have climbed just over 80%.