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OpenAI launches GPT-6 Cyber, a restricted model for approved security teams

OpenAI released GPT-6 Cyber on Nov. 5 via the API and Codex, first to select Daybreak Red customers, with gradual expansion. Per The Decoder, OpenAI rates it "Critical" under its Preparedness Framework and reports it stayed in scope in 99.93% of tests, 48.5% on ExploitGym, and 81 Firefox flaws Mozilla has patched. Scores are OpenAI's own; no independent testing yet.

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Made the five · #1 on Friday, November 6, 2026

OpenAI ships GPT-6 Cyber to vetted red teams only

Primary source

OpenAIopenai.com/index/introducing-gpt-6-cyber/

Coverage · 32 articles, oldest first

Thursday, November 5, 2026

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