Z.aiLaunchAI ModelsAugust 26, 2026

Z.ai releases open-weight GLM-5.3

Z.ai released GLM-5.3, an open-weight model built on the GLM-5.2 base with extended post-training. It scores 84.5% on CyberGym and 60 on Artificial Analysis Intelligence Index, beating GPT-5.6 Sol and Claude Fable 5 on agentic benchmarks.

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