OpenAI is expanding its Daybreak cybersecurity initiative with an updated Codex Security plugin, the full GPT-5.5-Cyber model, and a partner network with more than 25 security firms and several governments. The focus shifts from finding vulnerabilities to patching them automatically.

Amid concerns about AI models’ cybersecurity capabilities, OpenAI revealed an improved version of GPT-5.5-Cyber and its “Patch the Planet” initiative to fix open-source software…

Even as Anthropic's Fable remains in limbo, the race to get advanced AI models in the hands of defenders continues to heat up.

A plethora of pwn-prevention, including a 'Patch The Planet' pledge