OpenAI is finalizing a model with advanced cybersecurity capabilities that it plans to release only to a small set of companies, similar to Anthropic's limited roll out of Mythos, a source familiar told Axios.

AI company Anthropic is testing a previously undisclosed AI model called Mythos that is significantly more capable than anything it has previously built, according to a draft blog post left publicly accessible.

The company’s Claude Mythos Preview model is remarkably good at harming or hijacking other systems. Anthropic’s first application of the model is in a defensive cybersecurity role.