OpenAI launches GPT-5.6-Cyber to help defenders find vulnerabilities before attackers do

OpenAI has launched GPT-5.6-Cyber, a model designed to help cybersecurity defenders identify vulnerabilities before attackers exploit them, answering up to 98.5 percent of security queries that would otherwise be blocked and uncovering two previously unknown Chrome vulnerabilities. Access requires identity verification, and OpenAI notes that the window of opportunity for defenders is shrinking.