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OpenAI Launches Daybreak Cybersecurity Initiative
OpenAI announced Daybreak on Monday, an initiative to help organizations use frontier AI models for identifying and addressing software vulnerabilities. The program provides access to specific GPT models for defensive applications including code review, malware analysis and penetration testing.
May 12, 2:49 PM·2m read1 source
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OpenAI announced Daybreak on Monday, a cybersecurity initiative designed to help defenders use frontier AI models to identify and patch software vulnerabilities. According to the company's announcement, Daybreak aims to make software resilient by design.
The initiative starts from the premise that the next era of cyber defense should be built into software from the beginning. The company will provide customers with access to GPT-5.5, GPT-5.5 with Trusted Access for Cyber and GPT-5.5-Cyber to support defensive use cases.
These include secure code review, vulnerability triage, malware analysis, detection engineering, patch validation, red teaming and penetration testing. The announcement follows the recent launch of GPT-5.4-Cyber, a model designed to support defensive use cases under the company's Trusted Access for Cyber program.
The launch comes after Anthropic announced Claude Mythos Preview in April. That model reportedly found thousands of high-severity vulnerabilities, including some in every major operating system and web browser. The limited release of the model as part of Project Glasswing has prompted questions about whether defenders can match the speed of vulnerability exploitation as more powerful models become available.
OpenAI's Daybreak initiative uses the company's existing frontier models alongside Codex as an agentic harness to help third-party companies continuously secure software. Companies interested in participating can contact the company via a web form to request a vulnerability scan or assessment.
The assessment can identify and validate security issues across code and applications, with the goal of helping security teams prioritize risk and remediate faster.
