OpenAI Ships Full GPT-5.5-Cyber and 'Patch the Planet' for Vetted Defenders

OpenAI / The Hacker News·medium signal

OpenAI released the full GPT-5.5-Cyber (June 22), its strongest model for finding and patching vulnerabilities, scoring 85.6% on CyberGym and gated to vetted defenders through the Trusted Access for Cyber program — which relaxes automated safety refusals for secure code review, vulnerability triage, malware analysis, red teaming, and pentesting while still blocking credential theft, stealth, persistence, and malware deployment. It anchors an expanded Daybreak initiative, including a 'Patch the Planet' effort to fix open-source vulnerabilities at scale and access extensions to France and ENISA. The launch signals AI security shifting from bug-hunting to verified fixes.