Does Linguistic Register Affect Faithfulness in Spanish Cache-Augmented Generation? An Exploratory Study with Open-Source LLMs. Journal of Engineering and Artificial Intelligence, [S. l.], v. 2, n. 2, p. 1–15, 2026. DOI: 10.64142/jeai.2.2.54. Disponível em: https://engineering-ai.academicsquare-pub.com/1/article/view/62. Acesso em: 4 oct. 2026.