Recent technological advances allow artificial intelligence (AI) to perform tasks that require high warmth, such as caring, understanding others' feelings, and being friendly. However, current consumers may be reluctant to accept AI for such tasks. This research investigates the impact of required warmth to conduct a task on consumer acceptance of AI service and the moderating role of AI-human collaboration. A series of choice-based conjoint experiments and one survey yield two main findings. First, consumers tend to refuse AI for tasks that require high warmth due to the low perceived fit between AI and the task at hand. Second, an AI-human collaboration of AI supporting a human employee increases consumer acceptance of AI service for task...