GPT 5.6 Cyber

OpenAI's GPT-5.6-Cyber is designed to empower cybersecurity defenders against AI-driven cyberattacks. This model significantly improves upon previous versions, completing 95.0% of advanced cybersecurity requests, such as exploit-chain development and authentication bypass. This is a substantial increase compared to GPT-5.6 Sol (1.5%) and GPT-5.5-Cyber (57.3%), addressing earlier feedback regarding persistent refusals. The development aims to equip defenders with frontier intelligence before attackers widely deploy offensive AI capabilities.