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Large Language ModelsAI Safety & AlignmentOpen-Source AIr/artificialPublished: Aug 18, 2026, 13:01 JST

OpenAI paused cyber model; two labs shipped it anyway

OpenAI paused cyber model; two labs shipped it anyway

One week after OpenAI paused internal work on a model it could not rule out was cyber-capable, the capability shipped through two different routes. OpenAI released GPT-5.6 Cyber on Aug 10, a security-specialized model gated behind a "Daybreak Red" tier accessible only to 16 named partners (with individual accounts requiring hardware keys from Sept 1). Separately, Zhipu released GLM-5.3 on Aug 14, marketed on "emergent cyber capabilities," with open weights promised in approximately 2 weeks.

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