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OpenAI releases new Cyber model one week after Anthropic's Mythos preview made waves

OpenAI (OPENAI) revealed its GPT-5.4-Cyber today, exactly one week after Anthropic (ANTHRO) made waves with the public revelation of its Claude Mythos Preview, which also featured advanced ...
SiliconANGLE

OpenAI launches GPT-5.4-Cyber model for vetted security pros

OpenAI Group PBC today announced the launch of GPT-5.4-Cyber, a fine-tuned variant of its GPT-5.4 model designed for defensive cybersecurity work and also announced a significant expansion of its ...
CNBC

OpenAI to give EU access to new cyber model but Anthropic still holding out on Mythos

OpenAI announced on Monday it would grant the EU access to GPT-5.5-Cyber, a variation of its latest AI model. The AI lab said was rolling out in limited preview capacity to vetted cybersecurity teams ...
Dark Reading

Rethinking Cyber-Risk as Traditional Models Fall Short

Rapidly advancing technology, increasingly sophisticated attackers, and a rise in supply chain threats make systemic cyber-risk difficult to assess. An influx of vulnerabilities that continue to amass ...