GLM 4.5 Air

GLM-4.5-Air is the lightweight variant of our latest flagship model family, also purpose-built for agent-centric applications. Like GLM-4.5, it adopts the Mixture-of-Experts (MoE) architecture but with a more compact parameter...

by Z.ai

Overview

Quick stats across all benchmark runs.

Score

—

10 benchmarks

Avg Latency

50.3s

24 requests

Pricing

$0.13 in / $0.85 out

per 1M tokens

Context

131K

tokens

Alternatives

Models with similar or better quality but different tradeoffs

No alternatives found

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Benchmark Performance

How this model performs across different benchmarks

Benchmark	Score	Rank
Money Boy Cultural Literacy Test	26%	94 / 107

Price vs Performance

Compare cost efficiency across all models

Current model (baseline)

Other models (relative score)

Y-axis shows score difference from shared benchmarks. X-axis uses log scale.

Score Over Time

Performance trends across all benchmark runs

Benchmark Activity

Number of benchmark runs over time

Quickstart

View on OpenRouter

Get started with this model using OpenRouter

import { OpenRouter } from "@openrouter/sdk";

const openrouter = new OpenRouter({
  apiKey: "<OPENROUTER_API_KEY>"
});

const completion = await openrouter.chat.completions.create({
  model: "z-ai/glm-4.5-air",
  messages: [
    {
      role: "user",
      content: "Hello!"
    }
  ]
});

console.log(completion.choices[0].message.content);

Get your API key at openrouter.ai/keys

Other Models from Z.ai

Compare performance with other models from the same creator

Model	Latency	Cost/1M	Score
GLM 4.7	53.4s	$1.07	45%
GLM 5.1	19.9s	Free	44%
GLM 4.7 Flash	31.6s	$0.23	29%
GLM 4.6V	43.5s	$0.60	—
GLM 4 32B	18.7s	$0.10	—
GLM 4.5V	51.3s	$1.20	—
GLM 4.5	48.4s	$1.40	—
GLM 4.6	36.3s	$1.08	—
GLM 5V Turbo	—	$2.60	—
GLM 5 Turbo	9.2s	$2.60	—
GLM 5	6.2s	$1.26	—