Z.ai, a leading Chinese AI company formerly known as Zhipu, has released its next-generation base model GLM-4.5, achieving SOTA performance in open-source models. Built on a fully self-developed architecture, GLM-4.5 is China’s most advanced open-source Mixture of Experts (MoE) model, setting new standards for AI performance and accessibility while also reducing costs for developers. GLM-4.5 represents a