5 hours ago   securityweek

OpenAI Widens Access to Cybersecurity Model After Anthropic’s Mythos Reveal

Days after Anthropic unveiled its Claude Mythos AI model, OpenAI introduced GPT-5.4-Cyber, a cybersecurity-focused model ...

6 hours ago   hackread.com

OpenAI Launches GPT-5.4-Cyber to Boost Defensive Cybersecurity

OpenAI unveils GPT-5.4-Cyber, a cybersecurity-focused model built to help defenders analyze malware and fix software ...

1 day, 4 hours ago   thenextweb.com

OpenAI opens its cybersecurity model to thousands of defenders in race with Anthropic’s Mythos

In short: OpenAI is releasing GPT-5.4-Cyber, a model fine-tuned for defensive cybersecurity with lowered refusal ...

2 days, 1 hour ago   www.wired.com

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

OpenAI on Tuesday announced the next phase of its cybersecurity strategy and a new model ...