Campaign statistics for the chemical systems studied in this work. Gross discovery represents the total number of new materials within 0.2 eV per atom of the convex-hull at the end of the campaign, prior to post-campaign structure analysis. Duplicate discovery column lists how many of the structures among the gross discoveries were found to be duplicates of others. We further checked how many of the discovered structures relaxed into ICSD-derived entries in OQMD, listed as experimental in the table. Final column lists the total number (383) of explicitly unique, non-experimental structures.

System	Agent requests	DFT received	Gross discovery	Duplicate discovery	Experimental	Unique discovery
B–Fe	152	146	32	28	3	19
C–Fe	91	81	37	14	2	26
Cl–Os	101	70	13	1	1	11
Fe–N	66	47	17	10	1	10
Fe–S	158	133	22	23	6	14
Fe–V	147	130	53	30	1	32
Mn–S	99	73	29	5	2	22
Ni–S	220	191	94	30	6	66
O–V	66	52	23	5	3	17
S–V	174	129	31	22	3	20
Al–Sc–Ti	216	199	115	32	0	90
Bi–Ca–P	220	157	37	10	0	27
Ca–Mo–P	73	53	6	2	0	4
Cu–O–Rh	123	72	17	4	1	14
Hf–K–P	89	63	8	4	0	7
Hf–K–S	38	23	4	0	0	4