Artificial Analysis launches AA-PersonalityBench for AI personality and communication style
ArtificialAnlys · x · 2026-11-09
Artificial Analysis launched AA-PersonalityBench, a benchmark measuring how models communicate rather than whether they are correct:
- Method: 30 personality traits × 30 prompts each (900 total), judged pairwise by an LLM panel into Bradley-Terry Elo ratings, plus 21 directly measured communication characteristics (length, structure, punctuation, emphasis).
- Traits roll up into 8 indexes — Expressiveness, Organization, Informativeness, Transparency, Warmth, Conviction, Imagination, and Slop — percentile-ranked 1–100 across 42 models.
- Findings: models ranking high on sincerity tend to rank low on slop; creative models also score high on humor.
- Users can build their own personality rankings and explore full results and methodology.
Related event: Artificial Analysis Launches AA-PersonalityBench for Model Personality(2 posts)→
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