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GLM-5.3

Best frontier-class price/context ratio here — 1M context at $1.40 in / $4.40 out, but note reasoning cannot be disabled, so budget for thinking tokens on the output side.

Open weights · Community or custom license · Data checked September 6, 2026 · Not a hands-on evaluation

Model ID glm-5.3

Parameters
753B
Architecture
Not recorded
Context window
1,000,000 tokensMaximum input
Max output
131,072 tokensPer response
Input price
$1.40 per 1M tokens
Output price
$4.40 per 1M tokens
Cached input
$0.26 per 1M tokens
Blended price
$2.15 per 1M tokens3:1 input to output
Knowledge cutoff
Not recorded
Released
2026-08-25
Status
ga
Size band
120B and above

License and openness

GLM-5.3 is released under the GLM-5.3 License (custom; license_name glm-5.3 on Hugging Face). This is a community or custom license with its own conditions, which can include acceptable-use rules, user thresholds or naming requirements. Read it before commercial use. 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-5.3 costs $2.15 per million tokens blended. A workload of one million input and 330,000 output tokens per day would run about $85.56 per month at list price, before caching or batch discounts.

Cost at list price

Input$1.40 per 1M tokens
Output$4.40 per 1M tokens
Cached input$0.26 per 1M tokens
Blended, 3:1$2.15 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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