RAND's 2024 read of frontier-program security posture against the OC4–OC5 adversaries that want the weights
~SL2–SL3estimate
| Value kind | estimate — Interpret this value according to its displayed kind, scope, source, and as-of date. |
|---|---|
| Scope | RAND RRA2849-1 (2024) proposes the benchmark and discusses capability gaps; it is not a named, dated assessment of named 2026 programs. A current grade requires an identified assessor, date, scope, and evidence. |
| As of | 2024 |
| Source | RAND, Securing AI Model Weights (RRA2849-1, 2024); IFP / IST SL5 Task Force for the SL5 gap |
| Review | checking…review by 2026-09-12 · standard cadence |
| Recorded changes | last 2026-09-04 · 2 revisions tracked |
| Claim id | assessed-posture-of-frontier-labs-vs-oc4-oc5 |
Where the guide uses it
← Full numbers register — every date-stamped figure in the guide, with revision history.