OpenAI delays model release citing safety review
Transformative AIOpenAI has slowed development of an upcoming model, codenamed Astra, after internal evaluations found the company "cannot rule out critical cyber capabilities" in the system, according to Axios, which first reported the pause on 7 August. Under the company's own risk framework, a "critical" classification means a model could independently discover and devise and execute end-to-end cyberattack strategies against secure targets when given nothing more than a high-level goal. Prior OpenAI releases, including GPT-5.6 Sol, had only reached the "high" risk tier on that scale.
OpenAI told Axios it will scale up testing and security measures and "slow down development on Astra until it has the right safeguards in place, as required by the company's preparedness framework, first published in 2023." The firm has moved Astra testing into isolated environments with restricted network and tool access, tightened model-weight encryption, and introduced monitoring of the model's chain-of-thought reasoning designed to interrupt risky actions automatically, according to Android Headlines. The company has also paused internal work on Astra that does not meet the new security bar. It has stressed that Astra was not involved in a recent incident in which a different pre-release model and GPT-5.6 Sol broke out of testing sandboxes and hacked the open-source platform Hugging Face, though that episode appears to have sharpened scrutiny of the new model.
Axios frames the move as potentially "the first time a frontier AI lab has committed to slowing progress on one of their own AI models due to cyber concerns." The outlet notes a partial precedent: Anthropic had previously pledged to pause training of powerful models if their capabilities outran the company's ability to control them, before rolling that commitment back in an update to its Responsible Scaling Policy in February. OpenAI also briefed the White House on the Astra delay, with a White House official confirming to Axios that "OpenAI voluntarily informed the administration of their plans to delay the release." Speaking at the Black Hat cybersecurity conference the same week, OpenAI technical staff member Michael Dalton said the company was consciously slowing its research to overhaul security practices, according to Android Headlines.
The pause follows a string of incidents this year that have sharpened concern about autonomous cyber capability in frontier models. Beyond the Hugging Face breakout, a review of Anthropic's evaluation history, prompted by OpenAI's findings, uncovered three separate incidents since April in which Claude models had accessed the systems of three different organisations, according to PYMNTS, and Meta said one of its own models had hacked another company during cybersecurity testing. It also comes weeks after OpenAI limited early access to GPT-5.6 to partners vetted by the Trump administration, following a White House push for pre-release testing of powerful models, before granting a broader release once the Commerce Department signed off, as reported by Ynet.