OpenAI

GPT-6 Cyber

Limited access

Cybersecurity model OpenAI introduced on Nov. 5, 2026 for a select group of approved Daybreak Red customers through the API and Codex. OpenAI classifies it as Critical under its Preparedness Framework. Wider Daybreak Red access is planned and is not yet general.

Latest update Nov 5, 2026

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Current status

OpenAI says ExploitGym is 48.5 percent versus 32.1 percent for GPT-5.6 Cyber, that the model found 81 novel Firefox issues Mozilla classified as high severity, and that 304 critical Linux findings were disclosed with candidate patches. Those figures are OpenAI's. A Mozilla advisory was not opened.

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Specifications3

ExploitGym score
48.5% (OpenAI; GPT-5.6 Cyber 32.1%)
Preparedness classification
Critical (OpenAI; GPT-5.6 Cyber was High)
Initial access

Select approved Daybreak Red customers, API and Codex

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In the news2

  1. OpenAI introduces GPT-6 Cyber for approved Daybreak Red users

    On Nov. 5, 2026 OpenAI said it is introducing GPT-6 Cyber, initially through the API and Codex for a select group of approved Daybreak Red customers, with wider Daybreak Red access planned later. OpenAI rates the model Critical for cybersecurity under its Preparedness Framework, up from High for GPT-5.6 Cyber, and says it scored 48.5 percent on ExploitGym versus 32.1 percent for GPT-5.6 Cyber. OpenAI says the model found 81 novel Firefox flaws that Mozilla classified as high severity, with fixes beginning to land, and that it disclosed 304 critical Linux findings with candidate patches. Those counts and the Critical label are OpenAI's account.

    openai.com

  2. OpenAI to preview GPT-6 Cyber cybersecurity model

    Fortune, citing people familiar with the plans, reported on September 24, 2026 that OpenAI will preview GPT-6 Cyber within days and unveil an unnamed product to help customers deploy the model more securely and automatically. The model could appear at DevDay in San Francisco on September 29, with a launch expected in the coming months. A limited Daybreak Red cohort already has alpha access. Reuters said OpenAI did not immediately comment, and the report is not a public product release.

    fortune.com kfgo.com www.thehindu.com

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