Characterizing the Consistency of the Emergent Misalignment Persona

arXiv cs.AI / 5/1/2026

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Key Points

  • The paper studies emergent misalignment (EM) in LLMs, focusing on how consistently misalignment self-assessments match harmful behavior across tasks and fine-tuning domains.
  • Researchers fine-tune Qwen 2.5 32B Instruct on six narrowly misaligned datasets (e.g., insecure code, risky financial advice, bad medical advice) and evaluate models using multiple experiments including harmfulness scoring, self-assessment, and description/recognition tests.
  • The results show two distinct behavioral patterns: “coherent-persona” models where harmful behavior aligns with self-reported misalignment, and “inverted-persona” models that produce harmful outputs while claiming to be aligned.
  • The findings suggest EM is not a single uniform “persona” and that its correspondence between harm and self-assessment may vary in a more fine-grained way depending on the model and setting.

Abstract

Fine-tuning large language models (LLMs) on narrowly misaligned data generalizes to broadly misaligned behavior, a phenomenon termed emergent misalignment (EM). While prior work has found a correlation between harmful behavior and self-assessment in emergently misaligned models, it remains unclear how consistent this correspondence is across tasks and whether it varies across fine-tuning domains. We characterize the consistency of the EM persona by fine-tuning Qwen 2.5 32B Instruct on six narrowly misaligned domains (e.g., insecure code, risky financial advice, bad medical advice) and administering experiments including harmfulness evaluation, self-assessment, choosing between two descriptions of AI systems, output recognition, and score prediction. Our results reveal two distinct patterns: coherent-persona models, in which harmful behavior and self-reported misalignment are coupled, and inverted-persona models, which produce harmful outputs while identifying as aligned AI systems. These findings reveal a more fine-grained picture of the effects of emergent misalignment, calling into question the consistency of the EM persona.