# GLM-5.3



Zhipu



744B-A40B flagship; text-only; reasoning_effort low/high/max \(cannot disable\); 1M / output 128K


## Availability

API glm-5.3 \(z.ai\); open-source weights zai-org/GLM-5.3 \(744B-A40B\)
- Released: Aug 14, 2026

## Sources

- Source: https://docs.z.ai/guides/llm/glm-5.3

Canonical entry: https://www.ailyre.com/source/?id=zhipu-glm-5-3&lang=en