China’s Z.ai claims it can match Mythos on cybersecurity

China's Zhipu AI (Z.ai) released its open-weight GLM-5.2, and some researchers have claimed that it matches Mythos in certain bug-finding and cybersecurity scenarios. While GLM lags behind models from Anthropic and OpenAI in other, more general tasks, it seems that China has dramatically reduced the gap in the capabilities between its models and those of the US.

This level of advancement is particularly concerning to the US government, which has worked to restrict China's access to powerful models like Anthropic's Mythos and Fable, as well as the hardware necessary to train and run them. The Trump administration views Mythos and other advan …

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