In the Wake of Anthropic’s Mythos, OpenAI Has a New Cybersecurity Model—and Strategy

OpenAI says its safeguards “sufficiently reduce cyber risk” for now, while GPT-5.4-Cyber is a new cybersecurity-focused model ...

OpenAI unveils GPT-5.4-Cyber a week after rival's announcement of AI model

April 14 (Reuters) - OpenAI on Tuesday unveiled GPT-5.4-Cyber, a variant of its latest flagship model fine-tuned specifically ...

OpenAI follows Anthropic's lead in limited release of GPT‑5.4‑Cyber

The cybersecurity-focused AI model is less resistant to seemingly malicious actions, such as finding security vulnerabilities ...
SecurityWeek

‘Mythos-Ready’ Security: CSA Urges CISOs to Prepare for Accelerated AI Threats

CISOs must prepare for AI-powered cyberattacks as Anthropic's Mythos speeds up vulnerability discovery and exploitation, ...