Social Sim'26: Fidelity in Applications

In an era where digital interactions increasingly shape our social fabric, LLM-based social simulation offers a powerful lens to understand complex societal dynamics. As the scope and ambition of these simulations expand, however, important methodological and conceptual challenges become increasingly salient. Beyond compelling demonstrations, questions remain around evaluation, robustness, interpretability, and empirical grounding. Now in its second iteration, our workshop invites researchers, practitioners, and thought leaders to explore rigorous and responsible approaches to LLM-based social simulation.