Safety overview: GPT-6 Astra
GPT-6 Astra is OpenAI's first model rated Critical for cybersecurity capability under its Preparedness Framework, a material consideration for security-sensitive agent access and controls.
OpenAI calls **GPT-6 Astra** its most capable broadly deployed model. It is also the company's **first model** to reach the **Critical cybersecurity level** under its Preparedness Framework.
Builders giving agents access to code, credentials, networks, or security tools should treat model capability as part of the threat model and revisit permissions, isolation, and audit controls.
OpenAI calls **GPT-6 Astra** its most capable broadly deployed model. It is also the company's **first model** to reach the **Critical cybersecurity level** under its Preparedness Framework. Builders giving agents access to code, credentials, networks, or security tools should treat model capability as part of the threat model and revisit permissions, isolation, and audit controls. The supplied overview does not explain the evaluation, mitigations, deployment restrictions, or practical meaning of the Critical rating. It supports caution, not a quantified estimate of application risk.
Astra’s Critical cybersecurity classification makes model capability itself an explicit deployment risk signal, strengthening the case for revisiting permissions, isolation, credential handling, and auditing before granting agent access. Because the overview omits evaluation and mitigation details, it supports stricter external controls but cannot quantify application risk or their sufficiency.