What is OpenAI GPT-5.6-Cyber?

OpenAI GPT-5.6-Cyber is a large language model within the GPT-5.6 family that is adapted for cybersecurity-oriented tasks such as vulnerability analysis, security code review, exploit and threat reasoning, and incident-response assistance. It is designed to apply general-purpose language and reasoning capabilities to security-domain inputs like source code, logs, and threat intelligence, aiming to support security researchers and defenders with analysis and triage rather than replacing dedicated security tooling.