Mirror, Mirror on the Wall: Can VLM Agents Tell Who They Are at All?

Fuente: arXiv
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Main Authors: Ziliotto, Filippo, Beneduce, Ciro, Lepri, Bruno, Serafini, Luciano, Luca, Massimiliano, Campari, Tommaso
Format: Preprint
Published: 2026
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author Ziliotto, Filippo
Beneduce, Ciro
Lepri, Bruno
Serafini, Luciano
Luca, Massimiliano
Campari, Tommaso
author_facet Ziliotto, Filippo
Beneduce, Ciro
Lepri, Bruno
Serafini, Luciano
Luca, Massimiliano
Campari, Tommaso
contents In the animal kingdom, mirror self-recognition is a canonical probe of higher-order cognition, emerging only in some species. We ask whether an analogous functional capability emerges in embodied vision-language model (VLM) agents: can they recognize themselves in a mirror? We introduce a controlled 3D benchmark where a first-person VLM agent must infer a hidden body attribute from its reflection and select the matching target, while avoiding self-other misattribution. To separate mirror-grounded self-identification from shortcuts, we test mirror removal, misleading cues, and occluded reflections. We also evaluate the decision process through mirror seeking, temporal ordering, self-attribution, and reasoning-action consistency. Our experiments show that mirror-based self-identification emerges mainly in stronger VLMs. These models can use reflected evidence for action, whereas weaker models often inspect the mirror but fail to extract self-relevant information or misattribute their reflection. Language-vision conflict further shows that self-referential language alone is not evidence of grounded self-identification. Overall, mirror-based evaluation provides a diagnostic for whether embodied self-grounding is causally rooted in perception and action rather than priors, prompt compliance, or confabulation.
format Preprint
id arxiv_https___arxiv_org_abs_2605_08816
institution arXiv
publishDate 2026
record_format arxiv
spellingShingle Mirror, Mirror on the Wall: Can VLM Agents Tell Who They Are at All?
Ziliotto, Filippo
Beneduce, Ciro
Lepri, Bruno
Serafini, Luciano
Luca, Massimiliano
Campari, Tommaso
Artificial Intelligence
Computers and Society
In the animal kingdom, mirror self-recognition is a canonical probe of higher-order cognition, emerging only in some species. We ask whether an analogous functional capability emerges in embodied vision-language model (VLM) agents: can they recognize themselves in a mirror? We introduce a controlled 3D benchmark where a first-person VLM agent must infer a hidden body attribute from its reflection and select the matching target, while avoiding self-other misattribution. To separate mirror-grounded self-identification from shortcuts, we test mirror removal, misleading cues, and occluded reflections. We also evaluate the decision process through mirror seeking, temporal ordering, self-attribution, and reasoning-action consistency. Our experiments show that mirror-based self-identification emerges mainly in stronger VLMs. These models can use reflected evidence for action, whereas weaker models often inspect the mirror but fail to extract self-relevant information or misattribute their reflection. Language-vision conflict further shows that self-referential language alone is not evidence of grounded self-identification. Overall, mirror-based evaluation provides a diagnostic for whether embodied self-grounding is causally rooted in perception and action rather than priors, prompt compliance, or confabulation.
title Mirror, Mirror on the Wall: Can VLM Agents Tell Who They Are at All?
topic Artificial Intelligence
Computers and Society
url https://arxiv.org/abs/2605.08816