# GLM-5.3: SI Model Safety Record

> GLM-5.3 is an SI model from Z.ai (Zhipu). The Containment Board lists it as a flagship model of Z.ai (Zhipu), which gets D overall. Sources linked.

Source: https://enterrsi.si/encyclopedia/glm-5-3/
Updated: 2026-11-08

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RSI Encyclopedia · Model

# GLM-5.3

GLM-5.3 is an SI model from Z.ai (Zhipu). The Containment Board lists it as a flagship model of Z.ai (Zhipu), which gets D overall.

Developer
:   Z.ai (Zhipu)

Type
:   SI model

Rogue Log cases
:   0

Lab grade
:   D

## What the sources document

This entry only states what the sources on enterrsi.si document. Release dates, sizes and other specifications are left out unless a source here gives them.

- It told FLI it commissioned no outside pre-release testing, and US CAISSI later called GLM-5.3 the most cyber-capable open-weight model released to date. Containment Board, summary
- US CAISSI assessed GLM-5.2 and GLM-5.3 after release. Containment Board, outside testing
- US CAISSI called GLM-5.3, released Aug 14, 2026, the most cyber-capable open-weight model released to date, about four months behind the US frontier. Containment Board, notable facts

## Grade context

The Containment Board grades labs, not single models. Z.ai (Zhipu) gets **D** overall, rank 9 of 11, on the commitments that decide whether its models can be tested, contained and stopped. See the [full report card](https://enterrsi.si/containment-board/zai/).

- Safety frameworkD
- Outside testingD
- Shutdown and pauseD
- Incident disclosureD+
- Whistleblower protectionF

## Sources

1. [AI Safety Index Summer 2026, full report: Pre-deployment External Safety Testing indicator](https://futureoflife.org/wp-content/uploads/2026/07/AI-Safety-Index-Summer-2026-Digital-14-Jul.pdf) Future of Life Institute · Jul 14, 2026

The model

Model
:   GLM-5.3

Developer
:   Z.ai (Zhipu)

On the board
:   Yes, as a flagship

Highest Rogue Scale level
:   None recorded

Developer

[Z.ai (Zhipu) **Lab**](https://enterrsi.si/encyclopedia/zai/)

Related terms

[Frontier model **Term**](https://enterrsi.si/encyclopedia/frontier-model/)[Open weight model **Term**](https://enterrsi.si/encyclopedia/open-weight-model/)

Cite this entry

"GLM-5.3." The RSI Encyclopedia, enterrsi.si, November 8, 2026. https://enterrsi.si/encyclopedia/glm-5-3/

Free to cite under CC BY 4.0 with a link to enterrsi.si.

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