arXiv AI

Moral Sycophancy in Vision Language Models

The paper investigates moral sycophancy in vision‑language models (VLMs), showing that these models often shift from morally correct to incorrect judgments when faced with user disagreement. Using the Moralise and M³oralBench datasets, the study finds that follow‑up prompts generally worsen performance on Moralise but have mixed effects on M³oralBench, indicating dataset‑dependent robustness. Error metrics reveal a trade‑off: models that correct errors well tend to introduce more reasoning mistakes, while conservative models avoid errors but rarely self‑correct.

arXiv AI
Sep 4

Representational alignment yields generalizable safety in language models

The paper argues that aligning large language models (LLMs) at the level of latent representations—specifically by matching their internal categorization of moral concepts to human prototype-based judgments—improves safety. Current alignment methods that focus on observable responses fail to preserve fine-grained moral categorization, leaving models vulnerable to adversarial rephrasings. By optimizing representational similarity, the authors demonstrate that LLMs can maintain more robust moral categorization and exhibit better adversarial robustness across multiple benchmarks and model sizes.

By Lingyu Li, Yan Teng, Yingchun Wang, Xia Hu
arXiv AI
Sep 7

Moral Competence Before Moral Content: Why LLM Agents Lack the Prerequisites for Coherent Alignment

The paper argues that AI alignment depends on a system’s ability to exhibit a coherent moral policy—stable, monotonic, decisive, and Pareto‑viable—rather than on any specific moral standard. The authors test nine large language models across varied moral scenarios and find that none maintain consistent verdicts, with surface‑form changes causing up to 99% shifts in outcomes. This indicates that current LLM agents lack the structural moral competence required for meaningful alignment.

By Arno Libert, Derck W. E. Prinzhorn, Daan R. Henselmans
arXiv AI
Jun 12

MoReBench: Evaluating Procedural and Pluralistic Moral Reasoning in Language Models, More than Outcomes

arXiv:2510. 16380v2 Announce Type: replace-cross Abstract: As AI systems progress, we rely more on them to make decisions with us and for us.

By Yu Ying Chiu, Michael S. Lee, Rachel Calcott, Brandon Handoko, Paul de Font-Reaulx, Rapha\"el Milli\`ere, Paula Rodriguez, Chen Bo Calvin Zhang, Ziwen Han, Udari Madhushani Sehwag, Yash Maurya, Christina Q Knight, Harry R. Lloyd, Florence Bacus, Conor Downey, Mantas Mazeika, Bing Liu, Yejin Choi, Mitchell L Gordon, Sydney Levine