Business secretary Liz Kendall urges Britain’s business community to sit up and pay attention to emerging AI threats, following the debut of Anthropic’s new frontier model, Mythos.

What a year 2025 has been: Rich in both cyber events and innovations alike. On the latter, not a week has passed without a mention of innovation in Artificial Intelligence (AI). I am excited about the ...

Described by OpenAI as a new model tuned for defensive cybersecurity tasks, GPT-5.4-Cyber is being offered first to vetted security researchers, vendors and organizations.

OpenAI launches GPT-5.4-Cyber with selective access for verified defenders, adding a cyber-focused model and tighter controls for high-risk use.

A scaled-up version of OpenAI's Trusted Access for Cyber program appears to be OpenAI's response to Anthropic's Project Glasswing. Katelyn is a reporter with CNET covering artificial intelligence, ...

OpenAI has announced a new AI model called GPT-5.4-Cyber. Similar to Anthropic’s Claude Mythos, this new “cyber-permissive” variant of its GPT-5.4 is built for defensive cybersecurity and not public ...

OpenAI has launched its GPT-5.4 Cyber model, which is a specialised version of its GPT-5.4 model built especially for defensive cybersecurity tasks. The new model announcement by OpenAI comes just ...

In short: OpenAI is releasing GPT-5.4-Cyber, a model fine-tuned for defensive cybersecurity with lowered refusal boundaries and binary reverse engineering capabilities, and scaling its Trusted Access ...

Anthropic on Tuesday released a preview of its new frontier model, Mythos, which it says will be used by a small coterie of partner organizations for cybersecurity work. In a previously leaked memo, ...

OpenAI has launched a new AI model focused on cyber defence, days after the release of rival Anthropic's Claude Mythos sparked concern about the threat posed by increasingly powerful AI to global ...