GLM-5.3 release: Post-training scaling helps Chinese models match frontier
natolambert · x · 2026-08-15
Z.ai released GLM-5.3, a 750B parameter model that surpasses Kimi K3, Claude Fable 5, and GPT-5.6-Sol on several benchmarks. The article highlights that the model, based on the GLM-5.2 architecture, achieved state-of-the-art performance primarily through extensive post-training. The author reviews Zhipu AI's history since 2019, attributing their success to long-term expertise in post-training rather than distillation.
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