AI is now able to find and fix software vulnerabilities faster than people can. On June 22, 2026, OpenAI announced an expansion of its cybersecurity platform Daybreak. Its dedicated model GPT-5.5-Cyber scored 85.6% on CyberGym, beating GPT-5.5 at 81.8%, alongside a Codex Security plugin, 13 partner companies, trusted access for 7 governments, and Patch the Planet, an open-source support initiative. ASAP summarizes the announcement from the primary source.

GPT-5.5-Cyber scores 85.6% on CyberGym

GPT-5.5-Cyber is a cyber-defense model that scored 85.6% on CyberGym. On the same benchmark it leads GPT-5.5's 81.8% by about 4 points. It is released in a limited way to trusted defenders.

Codex Security fixes vulnerabilities inside the code

Codex Security is a plugin that finds, validates, and fixes vulnerabilities inside Codex. It patches vulnerabilities in existing systems quickly and automatically stops new ones before they reach production. In a 3-month preview it scanned more than 30K codebases and 30M commits and fixed more than 500K findings.

13 partner companies and 7 governments

OpenAI gathered 13 security companies into the Daybreak Cyber Partner Program. Cisco, Cloudflare, CrowdStrike, Palo Alto Networks, Akamai, IBM, Accenture, and Check Point are among the participants. It also formed Trusted Access for Cyber partnerships with seven entities: Australia, Canada, France, Germany, Japan, the Republic of Korea, and EU (ENISA).

Patch the Planet protects open source

Patch the Planet is an initiative that moves vulnerabilities in widely used open-source projects from finding to fix. OpenAI founded it with the security firm Trail of Bits, with HackerOne and others collaborating. It uses AI to support exposed open-source maintainers.

What it means: security shifts from human watching to AI auto-patching

Daybreak is a sign that security is shifting from people reading logs to AI scanning codebases and fixing first. As attacks speed up with AI, defense has to move at machine speed too. The AI cyber arms race is now in full swing.

Wrap-up

OpenAI expanded Daybreak with GPT-5.5-Cyber, Codex Security, a partner-and-government network, and Patch the Planet. CyberGym at 85.6%, 30K codebases scanned, and 13 partners with 7 governments are the core. Security is moving from human watching to AI auto-patching.

Source: ASAP summary of OpenAI's Daybreak expansion (June 22, 2026; GPT-5.5-Cyber at 85.6% on CyberGym vs GPT-5.5 at 81.8%, Codex Security 3-month preview scanning 30K-plus codebases and 30M-plus commits and fixing 500K-plus findings, 13 partner companies, Trusted Access for Cyber across 7 governments, Patch the Planet).