Abstract: Following recent research that takes the idea of Level of Detail (LOD) from its traditional use in 3D graphics and applies it to the artificial intelligence (AI) of virtual characters, we propose our approach on such an LOD AI. We describe how our approach handles LOD classification and how we used it to simplify the simulation quality of multiple aspects of the characters' behavior in an existing application. Finally, we delineate how we evaluated our approach with both a performance and perception analysis and report our findings.