China’s Z.ai (formerly Zhipu AI) has once again seized headlines with the launch of its open‑source GLM 4.5 Series. Positioned as a cost‑efficient, high‑performance alternative to existing large language models, GLM‑4.5 promises to reshape token‑economics and democratize access for startups, enterprises, and research institutions alike. this comprehensive article explores the GLM‑4.5 Series’s origins, pricing structure, […]
Zhipu AI releases GLM-4.5: An Open Source model for Reasoning , Code & Agents
On July 28, 2025, Beijing‑based startup Zhipu AI officially unveiled its GLM-4.5 series of open‑source large language models, marking its most powerful release to date and targeting advanced intelligent‑agent applications. The announcement—made via a live online event following the World Artificial Intelligence Conference (WAIC)—showcased two variants: the full‑scale GLM‑4.5 with 355 billion total parameters (32 billion active) […]
GLM-4.5 Air API
Zhipu’s GLM‑4.5 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 billion‑parameter (12 billion active) GLM‑4.5 Air model—featuring hybrid “thinking” and “non‑thinking” modes and full configurability of inference settings (e.g., temperature, max tokens, streaming) for efficient, high‑throughput intelligent‑agent applications .
Model Type: Chat