OpenAI Launches GPT-5.4-Cyber with Expanded Access for Security Teams

OpenAI has released GPT-5.4-Cyber, a specialized variant of GPT-5.4 optimized for defensive cybersecurity, expanding its Trusted Access for Cyber program to thousands of defenders and security teams.

• •The model is designed to help defenders find and fix vulnerabilities in digital infrastructure faster than traditional methods.
• •OpenAI's Codex Security has contributed to fixing over 3,000 critical and high-severity vulnerabilities using AI-powered detection and remediation.
• •The company implements safeguards against misuse, including protections against jailbreaks and adversarial prompt injections, through deliberate iterative rollout.
• •AI models are dual-use technologies that could be repurposed for malicious purposes, requiring responsible access control and continuous enhancement of security guardrails.

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