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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)
Price/1M
$0.00
1st cheapest
100% below median
Top 27%
Context Window
131K
145th largest
Top 63%
Input
$0.00
per 1M tokens
Output
$0.00
per 1M tokens
Blended
$0.00
per 1M tokens
Cheaper than 73% of models. Median price is $0.31/1M tokens.
Daily
$0.00
Monthly
$0.00
Context Window
131K
tokens
Larger than 37% of models
Max Output
96K
tokens
73% of context
Context Window Comparison