The Center for AI Standards and Innovation, the US government body responsible for evaluating frontier AI models, has been told to stop publishing its findings. A new executive order signed on June 2, 2026, shifts control of AI model assessments from CAISI to a classified framework run by national security agencies.
The trigger: Anthropic’s unreleased Claude Mythos model, which autonomously identified thousands of previously unrecognized high-severity zero-day vulnerabilities in major operating systems.
What happened and why it matters
CAISI, formerly known as the US AI Safety Institute, had completed over 40 evaluations of AI models by early June 2026, building a public track record that gave researchers, policymakers, and the broader tech industry a shared understanding of what frontier models could actually do.
The new executive order mandates a 30-day government review of AI models before companies can release them publicly. The evaluation process is being handed to a trio of agencies: the Treasury Department, the NSA, and CISA (the Cybersecurity and Infrastructure Security Agency).
