OpenAI GPT-6 Astra Officially Released: 99.9% ARC-AGI-3 Score, Perfect ExploitBench, First AI Model to Reach 'Critical' Cybersecurity Threshold
OpenAI officially released GPT-6 Astra on September 3, 2026, achieving a 99.9% ARC-AGI-3 score and a perfect 100% on ExploitBench, making it the first AI model to reach the 'Critical' cybersecurity threshold. Trained on 100,000 GPUs, the model uses a staged rollout with offensive cyber capabilities restricted to vetted defenders in the Daybreak Blue program.