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Expanding Daybreak as the Cyber Defense Window Narrows

OpenAI Blog ·
OpenAI is widening Daybreak access and adding GPT-5.6-Cyber for approved defenders doing higher-risk security work.

The post says Daybreak now has Blue access for frontier general models and Red access for purpose-trained cyber models. GPT-5.6-Cyber is described as reducing refusals on advanced dual-use tasks, with OpenAI saying it completed 95.0% of requests in an internal advanced cybersecurity evaluation. OpenAI also says the model helped find real vulnerabilities, including a high-severity V8 issue reported to Google as CVE-2026-15903. Access is limited to approved users and organizations, with identity checks, monitoring, legal attestations, hardware security keys for individual accounts, and stronger review settings encouraged.

OpenAI's note

score 7

Categories: Model Releases