Zuckerberg orders watermelon using Meta's Muse; shares pic. Meta CEO Mark Zuckerberg shared a photo of a watermelon delivered by Meta's AI agent Muse, which he uses for tasks such as ordering groceries and planning family activities. "Muse ordered me watermelon. How thoughtful!" Zuckerberg wrote. The post comes as Meta launched its new frontier AI model, Muse Wonder, on the same day. The model was internally codenamed "Watermelon".