Last Updated: 16 April 2026 OpenAI has a new ChatGPT model, and this one is aimed at security teams. It is called GPT-5.4-Cyber, and it is built to help defenders find software problems, study suspicious code, and move faster when digital systems are at risk. This release matters for one simple reason. OpenAI is not putting it in normal ChatGPT access right now. Instead, it is giving it to verifie...