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GLM-4.5-Air

Active Parameters

106B

Context Length

128K

Modality

Multimodal

Architecture

Mixture of Experts

KV Cache Rate

184 KB/tok

License

MIT License

Release Date

28 Jul 2025

Knowledge Cutoff

Mar 2025

API Pricing (per 1M)

Input: $0.13 · Output: $0.85

Hardware Sizing

Precision

Context

Workload Memory: 223.73 GB

FP16 · 8K context

Base Weights: 219.79 GB

KV Cache: 1.44 GB

Runtime & Graphs: 2.50 GB

Minimum Required Hardware

8x NVIDIA H100 80GB

223.7 / 576.0 GB usable · TP 8

Determine requirements for your specific workload:

Open in VRAM Calculator

Architecture Diagram

Evaluation Benchmarks

Rank

#118

BenchmarkScoreRank

Professional Knowledge

MMLU Pro

0.814

26

Graduate-Level QA

GPQA

0.75

76

General Text

Text Arena

1373

128

Intelligence Index

Artificial Analysis

0.11

231

Rankings

Overall Rank

#118

Coding Rank

-

About GLM-4.5-Air

GLM-4.5-Air is a high-efficiency 106B Mixture-of-Experts model by Z.ai activating 12B parameters for responsive agentic workflows and code generation. It incorporates Multi-Token Prediction and hybrid reasoning modes across a 128K context window.

Technical Specifications

Attention

Attention Structure

Multi-Head Attention

Attention Heads

96

Key-Value Heads

8

Attention Head Dimension

128

Position Embedding

Absolute Position Embedding

RoPE Theta

1,000,000

Normalization

RMS Normalization

Activation Function

Swish

Dimensions

Hidden Dimension Size

4,096

Number of Layers

46

FFN Intermediate Size (Dense)

1,408

Multi-Token Prediction Heads

1

Tokenizer

Vocabulary Size

151,552

Mixture of Experts

Total Expert Parameters

12.0B

Number of Experts

129

Active Experts

9

Shared Experts

1

FFN Intermediate Size (per Expert)

1,408

Dense Layers Before MoE

1