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Chinese AI labs · General language

GLM-4.5-Air

Legacy small model kept alive for existing integrations — new builds should start on GLM-4.7-FlashX or GLM-5.3-Flash instead.

Open weights · Permissive (Apache, MIT, OpenMDW) · Data checked September 6, 2026 · Not a hands-on evaluation

Model ID glm-4.5-air

Parameters
Not recorded
Architecture
Not recorded
Context window
Not recordedMaximum input
Max output
Not recordedPer response
Input price
$0.20 per 1M tokens
Output price
$1.10 per 1M tokens
Cached input
Not published
Blended price
$0.425 per 1M tokens3:1 input to output
Knowledge cutoff
Not recorded
Released
Not recorded
Status
ga
Size band
Parameters not recorded

License and openness

GLM-4.5-Air is released under the MIT. This is a permissive license. It generally allows use, modification and redistribution, including commercial use, subject to attribution and notice requirements. License terms can change between versions; confirm the text published with the weights you download.

Capabilities

Input modalitiestext
Output modalitiestext

What it is for

At a three-to-one input-to-output ratio, GLM-4.5-Air costs $0.43 per million tokens blended. A workload of one million input and 330,000 output tokens per day would run about $16.89 per month at list price, before caching or batch discounts.

Cost at list price

Input$0.20 per 1M tokens
Output$1.10 per 1M tokens
Cached inputNot published
Blended, 3:1$0.425 per 1M tokens
Estimate a workload across all models ↗

Sources

Sources checked September 6, 2026. Specifications and prices change without notice; confirm against the provider before you commit.

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