Meta expands Muse AI’s paid call-placing feature to U.S. businesses, offering subscribers new utility as the service surpasses 10 million users. Meta is testing a "human concierge" feature for Muse, its new personal AI assistant. Human contractors quietly handle some Muse phone calls. Internal company posts, as seen by Reuters, confirmed. As Meta brings these digital avatars to life, the days of simply typing text prompts to an AI are officially over.