OpenAI just expanded its Daybreak initiative, launching an updated Codex Security plugin alongside its specialized GPT-5.5-Cyber model. The cyber model reached 85.6% on the CyberGym benchmark, beating GPT-5.5's 81.8%. Why it matters: AI has made surfacing vulnerabilities trivial, overwhelming defenders with alerts—now OpenAI wants models to validate issues, draft targeted patches, and fix code at machine speed.
Anthropic CEO Dario Amodei and Google DeepMind CEO Demis Hassabis just called for a U.S.-led coalition to shape global AI guardrails during a closed-door G7 lunch with Donald Trump. Amodei urged cooperation on structured model access, cyber defenses, and restricting chip trade with China. Why it matters: With frontier models already triggering federal export freezes, AI leaders want Washington to set global standards before policies fragment.
OpenAI just launched GPT-5.5-Cyber in limited preview for critical infrastructure defenders, alongside its Trusted Access for Cyber program. Vetted security researchers get fewer classifier refusals to run authorized penetration tests and red teaming without guardrails getting in the way. It is built to level the playing field against attackers, though users must adopt phishing-resistant authentication by June 1, 2026.
