Cybersecurity
…AI models for the British government, said both Anthropic’s Claude Mythos Preview and OpenAI’s GPT-5.5 showed progress well above previous trends on cybersecurity testing. Separately, XBOW released data…
…AI models for the British government, said both Anthropic’s Claude Mythos Preview and OpenAI’s GPT-5.5 showed progress well above previous trends on cybersecurity testing. Separately, XBOW released data…
…In April 2026, Anthropic released its newest frontier model, codename Mythos , to twelve partners under a gated preview. Not general availability; the company explicitly held it back as it was (correctly) deemed…
…Announced in April 2026, Anthropic's Mythos is an AI model so effective at offensive cybersecurity that its own creators deemed it too dangerous for public release. It discovered thousands of unknown…
…More recently, Anthropic released an upgraded version of its publicly available Claude Opus model with version 4.7 . Meanwhile, Claude Mythos remains more capable but only available for select partners including Apple…
Anthropic to release Mythos-class models to the public
Anthropic to release Mythos-class models to the public
I co-founded a successful security company close to the Mythos ecosystem and have spoken with participants in the know and I am deeply concerned. We, collectively, have answers for some but not all of the problems ahead …
…AI model Claude Mythos Preview to find security vulnerabilities across operating systems and web browsers. The Wall Street Journal today reported that researchers at cybersecurity firm Calif used Claude Mythos Preview to…
…announcing Mythos, the company released Claude Opus 4.7, which for the first time built in safeguards meant to block malicious cybersecurity requests. (Security professionals who want to use the model defensively…
…Google is also one of the few companies with access to Anthropic’s Mythos model, which is considered too dangerous for wide release at this point. Meanwhile, Google’s own AI model…
…Mythos is a highly advanced AI model that the company says is so potentially dangerous to cybersecurity that it has been kept from public release so far. Opus has improvements that upgrade…
…the most capable public model outside Mythos/Glasswing access. As the LLM wars heat up, some of the biggest players in the AI market are quickly releasing new, more powerful models than…
…Anthropic recently released Claude Opus 4.7 and also announced Mythos Preview, a non-public model it says is uniquely advanced in cybersecurity. OpenAI quickly followed with GPT-5.4-Cyber, its…