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

The company says Mythos is too dangerous to release publicly. Cybersecurity experts agree the model's capabilities matter, ...

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

OpenAI has announced a new AI model called GPT-5.4-Cyber. Similar to Anthropic’s Claude Mythos, this new “cyber-permissive” ...

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

Microsoft, Amazon, Apple, CrowdStrike, Palo Alto Networks and others will use the model as part of a new cybersecurity initiative called Project Glasswing.

Enterprises are racing to embed large language models (LLMs) into critical workflows ranging from contract review to customer support. But most organizations remain wedded to perimeter-based security ...

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

New AI Model Offers Licensing Opportunities and Real-Time Intelligence for Security Providers "Security end users and manufacturers absolutely require LLMs and VLMs where they have greater control and ...

OpenAI has introduced a new AI model called GPT-5.4-Cyber, designed specifically for defensive cybersecurity work.