The LLM4Eval workshop is an academic and industry research venue focused on the development, deployment, and study of large language models for automated evaluation tasks, particularly within information retrieval and related artificial intelligence domains. It serves as a collaborative forum for researchers and practitioners to explore methodologies for using foundation models to assess system outputs, including automated relevance judgments, retrieval-augmented generation pipeline evaluation, and natural language generation quality. In addition to examining the efficiency and scalability of model-based evaluators, the workshop addresses key challenges such as alignment with human judgment, metric trustworthiness, bias, and robustness, often featuring shared benchmark challenges, interactive roundtable discussions, and keynote presentations.