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GLM-5.3

Z.ai’s new coding and cyber-defense model, post-trained on a 743B base. Agentic coding jumps over GLM-5.2 and it is live now via GLM Coding Plan and ZCode.

The Aug 14 model drop from Z.ai. Post-trained on a 743B base, sold as a coding and cyber-defense model, live through GLM Coding Plan and ZCode before open weights. We featured it because it was the loudest ship of that week and people were already running it in agent harnesses the same day.

by @Zai_org

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