ROBOT sex dolls are becoming big business and manufacturers are now claiming their products are so realistic people are MARRYING them. The latest sex robot doll is a head that can speak, smile and sing - all under the control of your smartphone. The model has a "stunningly. A SEX doll has been developed with artificial intelligence (AI) which allows it to respond to different scenarios. The doll, which has been named Samantha by its creator, Barcelona-based engineer Sergi Santos, can respond to basic conversation and needs to be seduced before any.