The Astra AI model can find zero-day vulnerabilities and chain them into working exploits without a human walking it through each step.

OpenAI says Astra is considerably more capable at cyber tasks than GPT-5.6 Sol. Following the Hugging Face incident, it is being especially cautious about releasing it.

The company will give select partners early access to its Astra AI model—so they have time to shore up their defenses.