GLM-5.3
Z.ai's flagship long-context reasoning model for complex coding and agentic workflows.
Z.ai's flagship long-context reasoning model for complex coding and agentic workflows.
| Model ID | glm-5.3 |
| Positioning | Most powerful |
| Context window | 1M tokens |
| Max output | 131K tokens |
| Modalities | text |
| Alias | zro/glm-5.3 |
Pricing
GLM-5.3 pricing: $1.40 per 1M input tokens, $4.40 per 1M output tokens, and $0.26 per 1M cache read tokens.
| Input | Output | Cache read |
|---|---|---|
$1.40 | $4.40 | $0.26 |
Reasoning effort
Default: high. Available levels: low, high, max. Reasoning cannot be turned off; a request for none uses low.
Upstream weights
zai-org/GLM-5.3 (GLM-5.3 License).