After Anthropic unveiled its Claude Mythos AI model, OpenAI introduced its own cybersecurity-focused model, GPT-5.4-Cyber.

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

OpenAI is expanding access to its most advanced AI models to help businesses and governments shore up their cyber defenses, a ...

Cyber, a fine-tuned variant of its GPT-5.4 model designed for defensive cybersecurity work and also announced a significant ...

OpenAI and Anthropic briefed House Homeland Security Committee staff on their new cyber-capable AI models and their ...

OpenAI launches GPT-5.4-Cyber with binary reverse engineering for verified defenders, scaling access to thousands as it ...

The Cybersecurity and Infrastructure Security Agency doesn't have access to Anthropic's powerful new Mythos Preview model, ...

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, ...

The emergence of Claude Mythos has sent early warning signals through governments and financial institutions, with ...

Finance ministers, central bankers and Barclays' chief executive warn that Anthropic's new Mythos AI model could expose ...

OpenAI on Tuesday announced the next phase of its cybersecurity strategy and a new model specifically designed for use by digital defenders, GPT-5.4-Cyber. The news comes in the wake of an ...