GLM-4.5

Open-Source Agentic AI Model by Zhipu AI

355B
Total Parameters
32B Active
128K
Context Window
Token Length
#3
Global Ranking
Among All LLMs

What is GLM-4.5

GLM-4.5 is Zhipu AI's flagship open-source large language model, designed specifically for agentic AI applications. Released in July 2025, GLM-4.5 represents a breakthrough in combining massive scale with practical usability through its innovative Mixture-of-Experts (MoE) architecture.

Key Highlights

  • 355B total parameters with 32B active per inference
  • MIT License - completely open for commercial use
  • Dual reasoning modes - thinking and non-thinking
  • Native tool calling and function integration

GLM-4.5 vs Predecessors

  • 3x larger than GLM-130B with better efficiency
  • Enhanced coding capabilities over GLM-4
  • Improved agentic task performance
  • Better multilingual support (24+ languages)

Features of GLM-4.5

Advanced capabilities that set GLM-4.5 apart from other language models

Mixture-of-Experts Architecture

355B total parameters with only 32B active per inference, delivering massive scale with efficient computation.

8x more efficient than dense models

GLM-4.5 Hybrid Reasoning

Unique dual-mode system: "thinking" mode for complex analysis and "non-thinking" mode for instant responses.

Adaptive intelligence

Native Tool Calling

Built-in support for function calling, web browsing, code execution, and external API integration.

128K context for long sessions

Advanced GLM-4.5 Coding

Full-stack development capabilities from frontend to backend, with 90.6% tool-use success rate in coding tasks.

Outperforms GPT-4 on coding benchmarks

Multilingual GLM-4.5

Trained on 24+ languages with exceptional English-Chinese bilingual capabilities and strong alignment.

Superior Chinese language performance

Open Source GLM-4.5

MIT license allows unlimited commercial use, self-hosting, and customization without API dependencies.

Community-driven development

GLM-4.5 Performance Benchmarks

Comprehensive evaluation across 12 industry-standard benchmarks

GLM-4.5 vs Leading LLMs - Overall Performance

63.2
Overall Score
12 Benchmark Average
84.6%
MMLU Score
Academic Knowledge
26.4%
Web Browsing
BrowseComp Benchmark
90.6%
Tool Success
Coding Agent Tasks

GLM-4.5 Competitive Analysis

Model Parameters Context Open Source Global Rank
GLM-4.5 355B (32B active) 128K MIT License #3
GPT-4 ~1.8T 32K Closed #1
Claude-4 Unknown 100K Closed #2
GLM-4.5-Air 106B (12B active) 128K MIT License #6

How to Use GLM-4.5

Get started with GLM-4.5 in minutes

Installation & Setup

1. Install Dependencies

pip install transformers torch accelerate

2. Download GLM-4.5

git clone https://huggingface.co/THUDM/glm-4-9b

3. Load Model

from transformers import AutoTokenizer, AutoModelForCausalLM
tokenizer = AutoTokenizer.from_pretrained("THUDM/glm-4-9b")
model = AutoModelForCausalLM.from_pretrained("THUDM/glm-4-9b")

Quick Start Examples

Basic Chat

inputs = tokenizer("Hello, what is GLM-4.5?", return_tensors="pt")
outputs = model.generate(**inputs, max_length=100)
response = tokenizer.decode(outputs[0])

Function Calling

tools = [{"name": "web_search", "description": "Search the web"}]
prompt = "Use web search to find latest AI news"
response = model.generate_with_tools(prompt, tools)

Docker Deployment

docker run -p 8000:8000 zhipuai/glm-4.5:latest

Popular GLM-4.5 Use Cases

AI Agents

Autonomous task automation

Code Assistant

Full-stack development help

Chatbots

Multilingual customer support

Data Analysis

Research and insights

Frequently Asked Questions about GLM-4.5

Everything developers need to know about GLM-4.5