Synthetic Influencers are no longer sci-fi curiosities. They are already adopted by many brands as scalable marketing tools that help sell products by mimicking human behaviour and interacting with users online. AI-generated personas like Lil Miquela, fronting campaigns for Prada and Calvin Klein, and Lu do Magalu, partnered with Samsung and Red Bull, now command millions of followers and operate at a scale no human creator can match without the support of AI tools.