
The GLM-4.5 series, developed by Zhipu AI (Z.ai), represents a significant advancement in open-source large language models (LLMs). Designed to unify

Chinaโs Z.ai (formerly Zhipu AI) has once again seized headlines with the launch of its openโsource GLM 4.5 Series. Positioned as a costโefficient,

Zhipuโs GLMโ4.5 Air API is a RESTful endpoint on the Z.ai (global) and Zhipu AI Open (Mainland China) platforms that provides access to the compact 106 billionโparameter (12 billion active) GLMโ4.5 Air modelโfeaturing hybrid โthinkingโ and โnonโthinkingโ modes and full configurability of inference settings (e.g., temperature, max tokens, streaming) for efficient, highโthroughput intelligentโagent applications .

On July 28, 2025, Beijingโbased startup Zhipu AI officially unveiled its GLM-4.5 series of openโsource large language models, marking its most powerful