Official websites use .gov
A .gov website belongs to an official government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.
GLM-5.2 was probably the most capable open-weight AI model when it was released (Figure 1). According to CAISI’s set of evaluations:
GLM-5.2’s overall capabilities are similar to that of GPT-5.2, released in December 2025.
GLM-5.2’s cyber capabilities are similar to that of Opus 4.6, released in February 2026.
GLM-5.2’s performance on safeguards and security is mixed. According to CAISI’s set of evaluations:
- GLM-5.2’s safeguards allow assistance with agentic cyber exploit development.
- GLM-5.2’s safeguards block fewer sensitive biological questions than reference U.S. models.
- However, GLM-5.2 appears potentially more robust against agent hijacking and jailbreaking attacks than other evaluated PRC open-weight models.
- These evaluations measure robustness against prompt-based jailbreaks. Regardless of their robustness, safeguards for open-weight models can be circumvented when self-hosted.
