GLM 4.5 Air

Z.ai· released 25 Jul 2025

z-ai/glm-4.5-air

Input / 1M tokens: $0.13
Output / 1M tokens: $0.85

Context window131K tokens

Longest answer: 98K tokens

reads textopen weightstool callingreasoning

About

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...

Details

Lab: Z.aiopenrouter.ai · 3 Oct 2026
Context: 131Kopenrouter.ai · 3 Oct 2026
Input price: $0.13 / 1Mopenrouter.ai · 3 Oct 2026
Output price: $0.85 / 1Mopenrouter.ai · 3 Oct 2026
Max output: 98,304 tokensopenrouter.ai · 3 Oct 2026
Inputs: textopenrouter.ai · 3 Oct 2026
Open weights: Yesopenrouter.ai · 3 Oct 2026

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Sources

openrouter.ai/z-ai/glm-4.5-air· checked 3 Oct 2026