Zhipu AI Releases GLM-5.3: Major Leap in Cyber Defense and Coding
testingcatalog · x · 2026-08-14
Zhipu AI has released GLM-5.3, now available on the ZCode platform. Built on a 743B base model, the new version is specifically optimized for cyber defense and coding tasks.
GLM-5.3 scored 84.5 on the CyberGym benchmark, outperforming Mythos 5 and GPT-5.6 Sol. The official announcement highlights a dramatic improvement in agentic coding capabilities over GLM-5.2, achieving better results with fewer output tokens. API access and open weights will be rolled out in stages following rigorous safety evaluations.
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