OpenAI has introduced a more capable and less restrictive version of GPT-5.5-Cyber, a specialized AI model designed for authorized cybersecurity work. The upgraded model is available only to vetted security firms and researchers, reflecting a growing industry trend toward controlled deployment of highly capable cyber-focused AI systems. Alongside the model update, OpenAI is launching new programs that allow approved organizations to use its tools for vulnerability research, threat analysis, and customer-environment defense.