On the https://Z.ai Code Bench, which measures real-world coding performance, GLM-5.3-Flash clearly outperforms GLM-5.2 at every effort level and performs on par with Claude Opus 4.8.
GLM-5.3-Flash outperforms GLM-5.2 on Z.ai Code Bench coding tests
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On the Z.ai Code Bench, which measures real-world coding performance, GLM-5.3-Flash clearly beats GLM-5.2 at every effort level. It performs on par with Claude Opus 4.8 on the same benchmark.
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