GPT-6 Cyber is a cyber-specialized variant of GPT-6 Astra, and OpenAI gives it the same Preparedness designations as GPT-6 Astra: Critical in Cybersecurity, High in Biological and Chemical, and below High in AI Self-Improvement.

The exact words it rests on

GPT-6 Cyber is a cyber-specialized variant of GPT-6 Astra designed for authorized security work, including tasks such as vulnerability discovery, exploit development, and web pentesting. The model has specialized post-training that aims to improve cybersecurity capabilities and reduce cyber refusals. The goal is to expand the security work the model can perform while keeping it within the user’s authorized scope and preserving refusals outside cybersecurity. In our evaluations, GPT-6 Cyber shows substantially stronger cybersecurity capabilities and improved alignment compared with GPT-5.6 Cyber. Under our Preparedness Framework, we give GPT-6 Cyber the same capability designations as GPT-6 Astra: Critical in Cybersecurity, High in the Biological and Chemical domain, and below High in AI Self-Improvement.

What the source said when we opened it, on 6 Nov 2026.

The source

GPT-6 Cyber System Card
OpenAI · 2026-11-05

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Checked

Checked by the notis newsroom on 6 Nov 2026, against the source above.

In the story

OpenAI rates GPT-6 Cyber Critical for cybersecurity and limits access to approved customers 6 Nov 2026