OpenAI 发布 GPT-5.5-Cyber 和安全倡议 Daybreak

OpenAI’s new GPT-5.5-Cyber just beat Mythos 5 on CyberGym. CyberGym measures whether an agent can reproduce known software vulnerabilities, so this is quite a strong signal for defensive vulnerability analysis of models. OpenAI also launched a major push to use GPT-5.5-Cyber and human security teams to fix open source bugs before AI bug-hunting tools flood maintainers with low-quality reports. Vulnerability discovery is becoming much easier, so the scarce part is now remediation, which means confirming the bug, proving reachability, writing a fix, testing it, and giving humans enough evidence to merge safely. OpenAI’s initiative is to use GPT-5.5-Cyber as a defensive security worker inside Codex. It scans code, checks whether a vulnerability is real and reachable, writes a patch, tests the patch, and gives humans evidence to approve it. Daybreak is OpenAI’s new cybersecurity initiative to help trusted defenders find, verify, and patch vulnerable software much faster using AI. The new checkpoint of GPT-5.5-Cyber, are all part of the company's limited “Trusted Access for Cyber” program and do not involve a public release.  > **引用原帖 OpenAI (@OpenAI):** > We’re expanding OpenAI Daybreak to help democratize patching vulnerable software at machine speed: > - Codex Security plugin: find, validate, and fix vulnerabilities right inside Codex > - The full version of GPT-5.5-Cyber model: a great model for trusted defenders > - Cyber Partner Program: powering products built on top of our best cyber capabilities for leading security companies to secure the world's software > - Patch the Planet: working with maintainers to secure critical open source projects > https://t.co/hyIi6gQmkm > https://x.com/OpenAI/status/2069104283824640023 Rohan Paul (@rohanpaul_ai): https://t.co/985y8E4eyl