The US Commerce Department has removed from its website the details of an agreement under which Microsoft, Google, and xAI agreed to submit new AI models to government scientists for security testing before release, Reuters reported on Monday.

The original page, posted on 5 May, said the three companies would hand over their frontier AI systems to the department’s testing team to be reviewed for cyberattack vulnerabilities, military-misuse risk and national-security flaws before public deployment.

By Monday afternoon Washington time, the link returned a “Sorry, we cannot find that page” error message; it was subsequently redirected to the website of the Center for AI Standards and Innovation, the government body that runs the tests.

The Center, the successor body to the US AI Safety Institute (AISI), is housed within the National Institute of Standards and Technology (NIST), part of the Department of Commerce.

The renaming and refocusing followed an executive order that scaled back the previous administration’s AI-safety architecture and reframed the institute’s mission around standards and industry coordination rather than safety evaluation.