OpenAI has fully launched its Daybreak cybersecurity initiative, releasing the complete version of GPT-5.5-Cyber, an updated Codex Security plugin, the Patch the Planet open-source remediation program, and a global Cyber Partner Program. The model scored 85.6% on CyberGym — the benchmark for AI-driven vulnerability reproduction — versus 81.8% for base GPT-5.5. This is the most … Continue reading OpenAI Daybreak & GPT-5.5-Cyber