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StanceBench: A Benchmark for Audio LLM-Based Interpersonal Stance Evaluation from Speech

2026-06-27 15:27:53
Yuzhe Wang (Electrical and Computer Engineering Department, Johns Hopkins University, Baltimore, USA), Thomas Thebaud (Electrical and Computer Engineering Department, Johns Hopkins University, Baltimore, USA), Jennifer Hu (Department of Cognitive Science, Johns Hopkins University, Baltimore, USA), Jes\'us Villalba-Lopez (Electrical and Computer Engineering Department, Johns Hopkins University, Baltimore, USA), Venkatesh Ravichandran (Amazon AGI, USA), Georgi Tinchev (Amazon Research, UK), Najim Dehak (Electrical and Computer Engineering Department, Johns Hopkins University, Baltimore, USA), Laureano Moro-Vel\'azquez (Electrical and Computer Engineering Department, Johns Hopkins University, Baltimore, USA)
arXiv_AI
             
Abstract

Speech-to-speech dialogue models increasingly depend on prosody and interactional nuance to convey social intent, yet benchmarks for these cues remain limited. We introduce StanceBench, a benchmark for measuring interpersonal stance in conversational speech and evaluating audio-capable LLMs as automated judges. Using the Seamless Interaction corpus, StanceBench (1) specifies 9 stance dimensions via role-prompt poles, (2) standardizes single-speaker and interaction-based evaluations, and (3) reports LLM-as-a-judge robustness, bias, and stance inference. Across evaluated stances, empathy and politeness are the easiest. Warmth and assertiveness are moderately separable with positivity skew/asymmetry. Honesty is the hardest and shows high prompt order bias, consistent with needing cross-turn evidence. Attentiveness is separable but aligns weakly with humans. Interaction stances are more context-sensitive, with threshold gaps and high variance, especially conflict regulation.

Abstract (translated)

URL

https://arxiv.org/abs/2607.22658

PDF

https://arxiv.org/pdf/2607.22658.pdf

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