OpenAI has expanded its Trusted Access for Cyber program by introducing a new model called GPT-5.4-Cyber. This model is being made available to vetted cyber defense professionals, who will use it to help strengthen online security. The move comes as AI capabilities in cybersecurity continue to advance. --- Why it matters: This development matters because it could improve the effectiveness of cyber defenses by leveraging advanced AI capabilities. Cybersecurity professionals can now utilize a more powerful tool to detect and respond to threats. Source: https://openai.com/index/scaling-trusted-access-for-cyber-defense