OpenAI on Monday said it's releasing an improved version of its GPT‑5.5‑Cyber model to trusted defenders as part of the Daybreak initiative, the artificial intelligence (AI) company announced last month.
Calling GPT‑5.5‑Cyber its "strongest model yet for finding and helping patch software vulnerabilities," OpenAI said the model can "sustain deeper analysis across large codebases" to identify security issues, validate them in a controlled environment, and develop and test patches.
In tandem, the tech upstart is releasing an update to the Codex Security plugin to speed up the process of discovering and patching vulnerabilities in existing systems, alongside preventing new vulnerabilities from entering production codebases.
"Developers can run deep scans or review recent changes, generate reports with severity, affected code locations, validation evidence, and remediation guidance, trace attack paths, build threat models, validate findings, and generate codebase-specific patches for review," OpenAI said.
On top of that, the plugin can triage and validate existing findings from scanners, advisories, bug-bounty reports, or ticketing systems, and then facilitate patch generation at scale to quickly close a backlog of vulnerabilities.
