Anthropic’s Mythos model found vulnerabilities in classified US government systems, official says

A U.S. official says one of Anthropic’s artificial intelligence models identified vulnerabilities in highly sensitive and ...
Decrypt

OpenAI's GPT-5.5 Cyber AI Beats Anthropic's Banned Mythos Model—And Nobody's Shutting It Down

GPT-5.5 Cyber tops the CyberGym leaderboard as Anthropic's best models sit offline under a Trump administration export ban.

The maker of ChatGPT wants to make open-source projects less of a security bargain

As AI tools flood open-source maintainers with low quality bug reports, OpenAI's new Patch the Planet initiative aims to filter out the noise and fix real threats.
Developer Tech

OpenAI deploys GPT-5.5-Cyber for open-source vulnerability fixes

OpenAI has deployed GPT-5.5-Cyber to execute automated open-source vulnerability remediation alongside security firm Trail of ...