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AA-PersonalityBench: Benchmarking LLM Personalities

Artificial Analysis launched AA-PersonalityBench to measure how models communicate rather than whether they are correct. Follow-up group comparisons showed open-weight models trailing proprietary ones across eight personality indices.

2026-11-03 ~ 2026-11-04 · 2 episodes · 5 posts

Episode 1 · Artificial Analysis launches AA-PersonalityBench to score model personalities (2026-11-03, 3 posts)

Artificial Analysis released AA-PersonalityBench, an open benchmark scoring LLMs on 30 personality traits to measure how models communicate rather than correctness. Open-weight models trailed closed ones by 32 points on genuineness but produced less slop.

Episode 2 · AA-PersonalityBench update: open models lag closed ones across all indices but slop (2026-11-04, 2 posts)

Artificial Analysis detailed the AA-PersonalityBench model lineup—Claude Opus 5.5 and GPT-6 versus Kimi K3.1 and DeepSeek V4.1 among others—and showed open-weight models trail proprietary ones on all 8 averaged personality indices except slop.