OpenAI Expands Daybreak Initiative with GPT-5.5-Cyber and Open-Source Patching

AI 안전 | Tue Jun 23 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 3 sources

OpenAI expanded its Daybreak initiative, announcing the general release of GPT-5.5-Cyber, a Codex Security update, and Patch the Planet, an open-source patching project.

Sources

• [1] Daybreak: Tools for securing every organization in the world - OpenAI Blog
• [2] Patch the Planet: a Daybreak initiative to support open source maintainers - OpenAI Blog
• [3] OpenAI Launches Full-Scale Effort to Patch Open-Source Bugs as It Takes on Anthropic’s Mythos - Wired AI