OpenAI doubles down on cyber defense: GPT-5.5-Cyber limited preview now available
AI-summarised brief · reviewed before publication
OpenAI has introduced GPT-5.5-Cyber, a model built on GPT-5.5, designed for specialized cybersecurity work, now available in a limited preview for critical infrastructure defenders. This model is meant for higher-risk workflows, offering more permissive behavior for authorized red teaming and penetration testing. OpenAI recommends GPT-5.5 with Trusted Access for Cyber for most organizations and developers, while GPT-5.5-Cyber targets more specialized use cases, with rollout starting in the next few days.