Symbol in context

$T_{50}$

This entry links every published equation using this exact notation. Its meaning may change between equations.

Meanings in context

Article-grounded definition

the length of task, measured in human-hours, that a frontier agent could complete autonomously with 50% reliability at time t.

Article-grounded definition

the task duration completable at 50% reliability at year t , METR’s fit is.

Article-grounded definition

the task duration completable at 50% reliability at year t , METR’s fit is [displayed formula].

T_{50}

This mathematical expression combines the displayed quantities; its precise role follows from the surrounding article text.

T_{50}(t) \approx T_{50}(t_0)\cdot 2^{(t-t_0)/\tau}, \qquad \tau \approx 7\text{ months},

This equation gives an approximation: it relates the quantities while allowing an approximation.

T_{50}(t) \;=\; T_0 \cdot 2^{\,(t - t_0)/\tau}, \qquad \tau \approx 7 \text{ months},

This equation gives an approximation: it relates the quantities while allowing an approximation.

T_{50}(t)

This mathematical expression combines the displayed quantities; its precise role follows from the surrounding article text.

T_{50}(t)

This mathematical expression combines the displayed quantities; its precise role follows from the surrounding article text.

T_{50}(t) \approx T_{50}(t_0) \cdot 2^{\,(t - t_0)/d}, \qquad d \approx 7\ \text{months},

This equation gives an approximation: it relates the quantities while allowing an approximation.