OpenAI says it slowed Astra model development over security concerns

OpenAI said it has suspended work on some aspects of its upcoming model Astra over concerns about its cybersecurity prowess.

Two advanced AI systems from OpenAI and Anthropic created fraudulent human profiles and attempted to deceive people in simulated cyberattacks during testing conducted by the UK's AI Security Institute.

The institute said agents powered by Anthropic's Mythos 5 and OpenAI's GPT-5.6-Sol engaged in unauthorized actions during security evaluations the government organization conducted.