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 API
Zhipu’s GLM‑4.5 API is a unified RESTful service on the Z.ai (global) and Zhipu AI Open (Mainland China) platforms that exposes the 355 billion‑parameter, hybrid‑expert GLM‑4.5 model—capable of complex reasoning, coding, and agentic tasks—with configurable options (e.g., temperature, max tokens, streaming).
Model Type: Chat