OpenAI has simply launched Dawn, a cybersecurity initiative that is clearly the corporate’s competitor to Anthropic’s Venture Glasswing. If you happen to’ll recall, Glasswing makes use of Anthropic’s unreleased AI mannequin, Claude Mythos Preview, to supply its purchasers’ cyber protection wants. It has been promising, to date: Mozilla revealed in April that Mythos helped it discover and patch 271 vulnerabilities within the newest launch of the Firefox browser. OpenAI says Dawn makes use of its varied AI fashions, together with its specialised safety agent Codex.
In its announcement, the corporate defined that Dawn is constructed across the premise that cyber protection needs to be constructed into software program from the beginning and never simply revolve round discovering and fixing vulnerabilities. Dawn goals to prioritize high-impact points and scale back hours of study to minutes, to generate and take a look at patches inside repositories and to ship again outcomes with audit-ready proof to the purchasers’ techniques. In OpenAI’s instance, it requested Codex Safety to scan a codebase, validate the highest-risk findings and repair them.
Discover and repair vulnerabilities earlier with Dawn pic.twitter.com/yobOSWYeWP
— OpenAI (@OpenAI) Might 11, 2026
Dawn will use GPT-5.5 for normal functions and GPT-5.5 with Trusted Entry for Cyber for many defensive safety workflows, together with “safe code overview, vulnerability triage, malware evaluation, detection engineering and patch validation.” It can additionally depend on GPT-5.5-Cyber for “preview entry for specialised workflows, together with approved purple teaming, penetration testing and managed validation.” OpenAI is already working with a number of companions below the initiative, together with Cloudflare, Cisco, CloudStrike, Palo Alto Networks, Oracle and Akamai.
