About

Security Level 5 is a non-profit cross-industry effort working to ensure frontier AI infrastructure can achieve nation-state-level security by 2028/2029. We are a core team of engineers and security strategists leading a 100-person technical track (comprising security engineers from frontier AI labs, government security specialists, and datacenter colocation providers) alongside an executive track of AI industry security leaders providing steering input. Security Level 5 is named after the highest security level in RAND's Securing AI Model Weights framework: the level the standard exists to make reachable.

Over the past nine months, we have conducted a series of workshops and research programs to clarify what it takes to reach Security Level 5 in a way that is sensitive to competitive pressures, the need to maintain speed of innovation, and the reality of a rapidly shifting threat landscape. Our mission is to create the optionality for frontier AI labs to reach Security Level 5 in the coming years, and to be able to activate that security level within six months of choosing to do so.

In service of that mission, we have convened this broad task force to clarify what needs to be done, and in particular what needs to be done early, to preserve that optionality. This standard represents one output of that collaborative effort.

For more information or to engage with our work, contact us at standard@sl5.org or visit sl5.org.