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 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 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 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 ...

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 ...

The new model will be used by a small number of high-profile companies to engage in defensive cybersecurity work.