After dissing Anthropic for limiting Mythos, OpenAI restricts access to Cyber, too

• 🛡️ OpenAI is launching GPT-5.5 Cyber, a specialized AI tool developed specifically for advanced cybersecurity testing.
• 🔐 Initial access is highly restricted, with the rollout being limited exclusively to "critical cyber defenders."
• 🚀 The tool is designed to bolster digital infrastructure by helping security experts identify and mitigate emerging threats.