Do multimodal models imagine electric sheep?

Fuente: arXiv
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Autores principales: Ramakrishnan, Santhosh Kumar, Vondrick, Carl, Giryes, Raja, Krähenbühl, Philipp, Koltun, Vladlen
Formato: Preprint
Publicado: 2026
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author Ramakrishnan, Santhosh Kumar
Vondrick, Carl
Giryes, Raja
Krähenbühl, Philipp
Koltun, Vladlen
author_facet Ramakrishnan, Santhosh Kumar
Vondrick, Carl
Giryes, Raja
Krähenbühl, Philipp
Koltun, Vladlen
contents Yes. We find that large multimodal models develop mental imagery when solving spatial puzzles, and they do imagine sheep when solving sheep puzzles. We fine-tune a Qwen3.5 VLM to solve twelve diverse visual reasoning tasks -- including tangram, jigsaw, sokoban, 3D mental rotation, and rush hour -- that require understanding geometry, spatial relationships, and the consequences of actions. By supervising the model to predict the open-loop sequence of actions to solve a puzzle from an initial state, we show that the model's activations after each action encode meaningful visual information about the intermediate state. This finding suggests that an imperfect visual world model begins to form as a byproduct of learning to select correct actions, in the absence of any explicit visual supervision. Building on this observation, we propose two ways to sharpen and use the mental images formed by the model. We find that integrating as few as sixteen visual tokens per step into the chain of thought improves the average solve rate from 83% to 89%, with particularly strong gains on reasoning-heavy tasks such as jigsaw and 3D mental rotation.
format Preprint
id arxiv_https___arxiv_org_abs_2605_09693
institution arXiv
publishDate 2026
record_format arxiv
spellingShingle Do multimodal models imagine electric sheep?
Ramakrishnan, Santhosh Kumar
Vondrick, Carl
Giryes, Raja
Krähenbühl, Philipp
Koltun, Vladlen
Computer Vision and Pattern Recognition
Artificial Intelligence
Machine Learning
Yes. We find that large multimodal models develop mental imagery when solving spatial puzzles, and they do imagine sheep when solving sheep puzzles. We fine-tune a Qwen3.5 VLM to solve twelve diverse visual reasoning tasks -- including tangram, jigsaw, sokoban, 3D mental rotation, and rush hour -- that require understanding geometry, spatial relationships, and the consequences of actions. By supervising the model to predict the open-loop sequence of actions to solve a puzzle from an initial state, we show that the model's activations after each action encode meaningful visual information about the intermediate state. This finding suggests that an imperfect visual world model begins to form as a byproduct of learning to select correct actions, in the absence of any explicit visual supervision. Building on this observation, we propose two ways to sharpen and use the mental images formed by the model. We find that integrating as few as sixteen visual tokens per step into the chain of thought improves the average solve rate from 83% to 89%, with particularly strong gains on reasoning-heavy tasks such as jigsaw and 3D mental rotation.
title Do multimodal models imagine electric sheep?
topic Computer Vision and Pattern Recognition
Artificial Intelligence
Machine Learning
url https://arxiv.org/abs/2605.09693