OpenAI GPT-6 Astra Discovers Zero-Day Flaws and Builds Working Exploits in Cyber Tests

OpenAI has unveiled GPT-6 Astra, a frontier AI model the company says can identify zero-day vulnerabilities and create working proof-of-concept exploits during authorized cybersecurity tests. Announced on September 3, 2026, the model’s release brings offensive-security automation into sharper focus as AI systems gain stronger computer-use, browsing, and software-engineering capabilities. Astra achieved a reported 100% score […] The post OpenAI GPT-6 Astra Discovers Zero-Day Flaws and Builds Working Exploits in Cyber Tests appeared first on Cyber Security News.