GLM 5.3

GLM 5.3 delivers comprehensive advancements in complex software engineering and agent capabilities. It uses the same base model as GLM-5.2, with all improvements driven by post-training.

Model overview

Model ID: zai/glm-5.3
Provider: zai
Type: language
Context window: 1,000,000 tokens
Max output tokens: 12,800

Tags: reasoning, tool-use, implicit-caching

Model pricing

Metric	Value
`Input tokens (/1M)`	`$1.40`
`Output tokens (/1M)`	`$4.40`
`Image generation`	`n/a`
`Cached input read (/1M)`	`$0.26`
`Cached input write (/1M)`	`n/a`
`Pricing source`	`gateway`

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