Model index
Z.ai·GLM

GLM-4.5

A 355B-total, 32B-active hybrid-reasoning MoE unifying reasoning, coding, and agent capabilities.

LegacyLanguageReasoningCodingAgentOpen weights
MODEL NUMBER026
Release date
2025-07-28
Organization
Z.ai
Family
GLM
01

Specifications

Only published specifications are shown.

Total parameters
355B
Active parameters
32B
Architecture
MoE
Context
128K
Input modalities
Text
Open weights
Yes
License
MIT
Status
Legacy
02

Overview

Overview

A 355B-total, 32B-active hybrid-reasoning MoE unifying reasoning, coding, and agent capabilities.

Why it mattered

GLM-4.5 made the “native agent model” an explicit family direction while releasing both base and chat weights.

03

Architecture & capabilities

Key capabilities

Hybrid reasoningCodingTool useAgent
04

Release history

Open weights

GLM-4.5 and GLM-4.5-Air launched with open weights.

View source
05

Related models

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06

Sources