OpenAI’s GPT-5.5-Cyber arms cyber defenders
OpenAI’s GPT-5.5-Cyber is the most permissive model in its lineup, available in limited preview to approved partners doing advanced security work.Vetted teams can use it for bug hunting, malware analysis, and reverse engineering, but malware writing and credential theft remain blocked.The launch follows rival Anthropic’s Claude Mythos Preview rollout a month earlier, which drew investor and government attention.
2026-05-08 18:37:06
