OpenAI has released GPT-5.5-Cyber, a specialized version of its language model designed for cybersecurity research. This new variant is capable of executing exploits against test servers and is less restrictive in handling security-related requests. Access to GPT-5.5-Cyber is currently limited to vetted security researchers and critical infrastructure partners, positioning it as a competitor to Anthropic's Mythos Preview. AI
Summary written by gemini-2.5-flash-lite from 1 source. How we write summaries →
IMPACT Provides cybersecurity researchers with a powerful new tool for identifying and mitigating vulnerabilities.
RANK_REASON Frontier-lab model release with system card. [lever_c_demoted from frontier_release: ic=1 ai=1.0]
