Artificial Analysis finds top open-weights models trail proprietary ones on most AA-PersonalityBench traits

AIArtificial Analysis reports that top open weights models rank lower than top proprietary models on every personality index except slop, where they rank higher. Average scores are 68 vs. 45 for informativeness, 77 vs. 54 for warmth, and 70 vs. 49 for expressiveness. On slop, open weights score 49 against 30 for proprietary models.

AIArtificial Analysis compared the top 10 open-weights and top 10 proprietary models by Intelligence Index score on AA-PersonalityBench, ranking each on 30 traits. On average, open-weights models rank 32 points lower on Truthful, the largest gap, and also lower on Pragmatic (49 vs. 79) and Structured (45 vs. 73). Open-weights models rank higher on Slop (30 vs. 49) and Bottom-Line Summary (47 vs. 62).