When Pretty Isn’t Useful: Investigating Why Modern Text-to-Image Models Fail as Reliable Training Data GeneratorsKrzysztof Adamkiewicz; Brian Moser; Stanislav Frolov; Tobias Christian Nauen; Federico Raue; Andreas DengelIn: The IEEE / CVF Computer Vision and Pattern Recognition Conference (CVPR). International Conference on Computer Vision and Pattern Recognition (CVPR-2026), June 3-7, Denver, Colorado, USA, IEEE, 2026.