Table 2. Moses metrics of the agents on the ACE2 task.

SNN, similarity to a nearest neighbor; IntDiv, internal diversity.

Model	Validity	Uniqueness	SNN	IntDiv	Novelty
Reinvent	0.875	0.987	0.560	0.816	0.976
SGPT-RL	0.990	0.986	0.466	0.797	1.000