Z.aiLaunchAI ModelsAugust 26, 2026

Z.ai releases open-weight GLM-5.3, beating rivals on agentic benchmarks

GLM-5.3 hit 84.5% on the CyberGym vulnerability benchmark, beating top proprietary models. It ties GPT-5.6 Sol on pass@1 (72.7% vs 69.0%) but wins pass@4 at half the cost ($3.99 vs $8.37 per rollout).

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