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OpenAI classifies GPT-6 Astra as a critical cybersecurity model

OpenAI has classified GPT-6 Astra as 'Critical' under its cybersecurity preparedness framework.

Published 2h2 sourcesConfirmedMajor
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The model discovered unknown vulnerabilities in a browser and an OS kernel, developing working exploits.

This classification is a first for the company and raises questions about safeguards for advanced AI systems.

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Auto-synthesis from 2 media sources · identified on September 17, 2026
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