Trusted access for the next era of cyber defense | OpenAI

OpenAI is expanding its Trusted Access for Cyber (TAC) program to provide thousands of verified defenders and hundreds of teams with access to advanced AI models, including the new GPT-5.4-Cyber, specifically fine-tuned for defensive cybersecurity use cases. This initiative emphasizes democratized access, iterative deployment, and ecosystem resilience to accelerate cyber defense efforts while implementing robust safeguards and verification processes to prevent misuse.