GPT 5.6 Cyber

OpenAI has launched GPT-5.6-Cyber, a specialized model for advanced vulnerability research and exploit development tailored for approved defenders. A fine-tuned version of GPT-5.6 Sol, this model improves performance on cybersecurity tasks, including finding zero-day vulnerabilities and developing exploit chains. OpenAI specifically trained GPT-5.6-Cyber to reduce refusals on higher-risk, dual-use cybersecurity requests, enabling work that general-purpose models typically decline, thereby supporting legitimate defensive operations through enhanced technical capabilities and specialized training.