# WM-VLM: Probing Internal World Models for Interleaved Visual-Textual Reasoning > Source: > Published: 2026-10-05 22:30:08+00:00 Humans often solve spatial problems by mentally simulating visual transformations. In contrast, conventional vision-language models (VLMs) reason primarily through language. We investigate whether VLMs can solve spatial problems by reasoning with both text and generated visual states. To this end, w