\begin{table}[t]\centering\small
\caption{103M pilot: held-out cross-entropy (nats/token) and perplexity on 327,680 FineWeb-Edu validation tokens
(40 $\times$ 16 $\times$ 512) under forced random budgets and, for PRISME, under the locked controller.}
\label{tab:pilotppl}
\begin{tabular}{llrr}\toprule
System & policy & loss & ppl\\\midrule
gr 103m & forced b0 & 3.8746 & 48.16\\
gr 103m & forced b1 & 3.8731 & 48.09\\
gr 103m & forced b2 & 3.8722 & 48.05\\
gr 103m & forced b4 & 3.8714 & 48.01\\
gr 103m & forced b8 & 3.8718 & 48.03\\
\bottomrule\end{tabular}\end{table}