OpenAI has introduced GPT-5.6-Cyber, a model specifically designed for cybersecurity applications, including vulnerability research and penetration testing. This new model is built on the GPT-5.6 Sol architecture and has been trained to enhance its capabilities in specialized cybersecurity tasks, such as identifying zero-day vulnerabilities and developing exploit chains. Notably, GPT-5.6-Cyber has reduced safeguards in place, allowing it to engage in higher-risk activities1. The launch of this model highlights the growing importance of artificial intelligence in cybersecurity, particularly in the development of exploits and incident response strategies. As zero-day activity targeting OpenAI's models increases, the window for patching vulnerabilities is rapidly shrinking. This development matters to cybersecurity practitioners because it underscores the need for immediate assessment of exposure to potential threats, given the accelerated pace of vulnerability exploitation.