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Truth behind chip stock fall from China AI models

Chinese AI startups are stepping up challenges to OpenAI and Anthropic, with models such as DeepSeek V4, Z.ai’s GLM 5.2 and Moonshot AI’s upcoming open-source Kimi K3 drawing attention. The Kimi K3 announcement coincided with sharp falls in U.S.-listed chip and AI infrastructure-related shares, including Nvidia and Micron. The moves have fuelled questions over whether demand for expensive AI hardware will meet expectations as efficient, open-source Chinese models gain share.