Cloudflare has integrated OpenAI's o3 model, branded as Daybreak, directly into its vulnerability discovery and remediation pipeline. When a flaw is found, Daybreak investigates it and proposes a fix for human review before any patch ships. The loop from detection to proposed defense is now automated.
The engineering side runs on Codex. Cloudflare developers use it to write and review code faster, with reported gains in both output velocity and code quality. Two distinct OpenAI tools, two distinct jobs: one for security, one for development.
The full piece is worth reading for how Cloudflare operationalizes AI inside a company that sits at the infrastructure layer of the internet. The architecture decisions here, specifically keeping humans in the review loop on vulnerability fixes, will matter to anyone building security workflows on top of large language models.
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