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Zhipu AI Releases GLM-5.2 Open-Weight Model

Zhipu AI Releases GLM-5.2 Open-Weight Model

FIRST LOOK ATLAS OWASP HIGH Significant risk · Prioritise patching ▲ 8.2 The Verge AI

Zhipu AI (Z.ai) has released GLM-5.2, an open-weight model that researchers report matches Anthropic's Mythos in bug-finding and cybersecurity-related tasks, while remaining freely downloadable and runnable on commodity hardware. The open-weight distribution removes access controls and usage monitoring that restrict frontier closed models, enabling unconstrained offensive security use by any actor. Defenders face a materially elevated threat from nation-state and cybercriminal actors who can now fine-tune, deploy, and weaponise a frontier-class vulnerability-discovery model without API gatekeeping or usage telemetry.

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