GLM-5.3 promises a 50% coding leap, claims to be the best open weights model

Zhipu AI says GLM-5.3 delivers a 50% coding improvement through post-training alone, while its cybersecurity skills have advanced enough to uncover thousands of vulnerabilities. Z.ai now claims GLM-5.3 has taken the open-weight coding crown from Alibaba’s competing Qwen 3.8 model.
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https://4sysops.com/archives/glm-5-3-promises-a-50-coding-leap-claims-to-be-the-best-open-weights-model/