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Z.AI: GLM 4.5 Air

byZ-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)

Pricing

Input
$0.10 / 1M tokens
Output
$0.68 / 1M tokens

Specifications

Context Window131K tokens
Max Output98K tokens
Modalitytext
Input Typestext
Output Typestext

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