How well are open sourced AI-generated image detection models out-of-the-box: A comprehensive benchmark study. - Simiao Ren; Yuchen Zhou; Xingyu Shen; Kidus Zewde; Tommy Duong; George Huang; Hatsanai Tiangratanakul; Tsang Ng; En Wei; Jiayu Xue (CoRR, 2026)