RT Journal Article T1 ChatGPT as a Virtual Peer: Enhancing Critical Thinking in Flipped Veterinary Anatomy Education. A1 Martín Alguacil, María Nieves A1 Avedillo Cea, Luis Javier A1 Mota Blanco, Rubén Avelino A1 Marañón Almendros, Mercedes A1 Gallego Agúndez, Miguel AB Artificial intelligence is transforming higher education, particularly in flipped classroom settings, in which students learn independently prior to class and collaborate during in-person sessions. This study examines the role of ChatGPT as a virtual peer in a veterinary anatomy course centered on cardiovascular and respiratory systems. Over two academic years (2023–2025), 297 first-year veterinary students worked in small groups to explore anatomy through structured prompts in English and Spanish using ChatGPT versions 3.5 and 4. Activities involved analyzing AI output, evaluating anatomical accuracy, and suggesting alternative names for vascular variations. Learning outcomes were assessed using Bloom’s Taxonomy-based questions, and student perceptions were captured via online surveys. Progressive performance improvement was noted across three instructional phases, particularly in higher-level cognitive tasks (Bloom level 4). Responses to English prompts were more accurate than those to Spanish prompts. While students appreciated ChatGPT’s role in reinforcing knowledge and sparking discussion, they also flagged inaccuracies and emphasized the need for critical evaluation. Peer collaboration was found to be more influential than chatbot input. Conclusions: ChatGPT can enrich flipped anatomy instruction when paired with structured guidance. It supports content review, fosters group learning and promotes reflective thinking. However, developing digital literacy and ensuring expert oversight are essential to maximizing the educational value of AI PB MDPI YR 2025 FD 2025 LK https://hdl.handle.net/20.500.14352/123930 UL https://hdl.handle.net/20.500.14352/123930 LA eng NO Martín-Alguacil, N., Avedillo, L., Mota-Blanco, R. A., Marañón-Almendros, M., & Gallego-Agúndez, M. (2025). ChatGPT as a Virtual Peer: Enhancing Critical Thinking in Flipped Veterinary Anatomy Education. International Medical Education, 4(3), 34. https://doi.org/10.3390/ime4030034 NO Author Contributions: Conceptualization, N.M.-A.; methodology, N.M.-A., L.A., R.A.M.-B., M.M.-A. and M.G.-A.; validation, N.M.-A., L.A. and R.A.M.-B.; formal analysis, N.M.-A., L.A. and R.A.M.-B.; investigation, N.M.-A., L.A. and R.A.M.-B.; resources, N.M.-A., L.A., R.A.M.-B., M.M.-A. and M.G.-A.; data curation, N.M.-A., L.A., R.A.M.-B., M.M.-A. and M.G.-A.; writing—original draft preparation, N.M.-A.; writing—review and editing, N.M.-A., L.A. and R.A.M.-B.; supervision, N.M.-A. All authors have read and agreed to the published version of the manuscript.{Citation} NO Sin financiación DS Docta Complutense RD 10 abr 2026