GLM open-weight model family (GLM-5 / 5.1 / 5.2)

Name: GLM open-weight model family (GLM-5 / 5.1 / 5.2)
Brand: Zhipu AI (Z.ai)

Generally Available

Zhipu AI (Z.ai)

GLM open-weight model family (GLM-5 / 5.1 / 5.2)

Overview

Zhipu's MIT-licensed frontier line, designed for 'Agentic, Reasoning, Coding' workloads. GLM-5.2 (June 13, 2026) is a 744B-parameter mixture-of-experts model (40B active) with 1M-token context that scores 62.1 on SWE-bench Pro and 81.0 on Terminal-Bench 2.1, leading open-source models on several agentic benchmarks.

GLM-5.2 weights are live on Hugging Face under MIT license and instantly available on the GLM Coding Plan; GLM-5.5 is rumored for around August 2026.

Key Specs

GLM-5.2 Parameters

744B total / 40B active (MoE)

Context Window

1M tokens

SWE-bench Pro

62.1 (open-source leader; Claude Opus 4.8 scores 69.2)