The 5th Advanced Course and Symposium on Artificial Intelligence & Neuroscience (ACAIN) is a full-immersion four-day event at the Riva del Sole Resort & SPA, Tuscany, featuring lectures by world-renowned experts. The event consists of a two-day course (September 21-22) followed by a two-day symposium (September 23-24). It aims to foster multidisciplinary interactions between AI and neuroscience communities. Topics include neuroscience-inspired AI, cognitive computing, deep learning, computational neuroscience, human-level AI, ethics for autonomous systems, explainable AI, and more. Confirmed lecturers include Panos Pardalos (University of Florida), Jose Principe (University of Florida), Maneesh Sahani (UCL), Jonathon Shlens (Google DeepMind), Dimitra Thomaidou (Hellenic Pasteur Institute), and Marina Vidaki (University of Crete). The event involves 36-40 hours of lectures and provides opportunities for participants to present their research through oral talks or posters.