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Z.AI: GLM 4.5 Air

by Z.AI

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 size. GLM-4.5-Air also supports hybrid inference modes, offering a "thinking mode" for advanced reasoning and tool use, and a "non-thinking mode" for real-time interaction. Users can control the reasoning behaviour with the `reasoning` `enabled` boolean. [Learn more in our docs](https://openrouter.ai/docs/use-cases/reasoning-tokens#enable-reasoning-with-default-config)

Avg Score

0.0%

0 answers

Avg Latency

0ms

0 runs

Pricing

Free

input

/

Free

output

per 1M tokens

Context

131K

tokens

Alternatives

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Other Models from Z.AI

Compare performance with other models from the same creator

ModelScoreLatencyCost/1M
Z.AI: GLM 4.779.9%29.5s$0.95
Z.AI: GLM 4.6V——$0.60
Z.AI: GLM 4.6——$0.93
Z.AI: GLM 4.6——$1.10
Z.AI: GLM 4.5V——$1.20
Z.AI: GLM 4.5——$0.95
Z.AI: GLM 4 32B ——$0.10

Benchmark Performance

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Score Over Time

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Benchmark Activity

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Quickstart

Get started with this model using OpenRouter

View on 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:free",
  messages: [
    {
      role: "user",
      content: "Hello!"
    }
  ]
});

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

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