GLM-5.3 tops the open-model rankings and undercuts rivals on price, but its release is delayed

The DecoderAugust 19, 2026en

GLM-5.3, the AI model from Chinese startup Z.ai, scores 60 points on the Artificial Analysis Intelligence Index. That ties it with Kimi K3 for the top spot among open models, and it's seven points ahead of the previous GLM-5.2. The article GLM-5.3 tops the open-model rankings and undercuts rivals on price, but its release is delayed appeared first on The Decoder .

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