B.AI maintains zero-cost access for GLM-5.3-Flash model

B.AI announced that it will continue to provide free access to the GLM-5.3-Flash model for global developers, even after the official Zhipu (智谱) discount ends on September 9. The platform aims to absorb upstream cost fluctuations to ensure developers can maintain their workflows without interruption. GLM-5.3-Flash features 320B total parameters, 18B active parameters, and supports a 1M context window.