China's Zhipu Claims Parity With Western Models on Cyber Defence and Publishes Its Own Standard

Zhipu AI, the Beijing model developer known internationally as Z.ai, released its GLM-5.3 model on August 14 alongside a programme it calls Shield of Open Source, which offers free security audits and automated code-auditing tools through its ZCode platform. A researcher told the South China Morning Post that the launch marks a shift in how China's leading laboratories approach global cybersecurity, describing it as the country's first answer to the Western Project Glasswing effort.

The published numbers show partial parity. Zhipu reported that GLM-5.3 scored 84.5 percent on CyberGym, a test of whether a model can read code, find security flaws and confirm that they are genuine, slightly ahead of the 83.8 percent it recorded for its American benchmark. On ExploitBench, which measures how far a model can carry an exploit, the Chinese model scored 54.4 percent against 78 percent and 76.5 percent for the two leading American systems. These are the developer's own figures and have not been independently replicated. Z.ai said it will publish open weights about two weeks after launch, once safety evaluation and hardening are complete.

The technical push runs alongside a linguistic one. Chinese state media have called for English-language artificial intelligence terms to be replaced with standardised Chinese equivalents, a campaign the South China Morning Post described as an effort to build what officials call discourse power. Terminology is where technical standards begin, and whoever writes the vocabulary tends to write the specifications that follow.