How they compare
Nomi's strength is memory: it remembers your history in remarkable detail, with unfiltered chat and one flat price of about $16 a month, or about $8 a month yearly, covering chat, images, voice calls and group chats.
Joi is free to start, adapts to how you talk and adds images, short videos and video calls, including AI versions of real porn stars, for about $10 to $30 a month plus credits for images and video.
Nomi is the steadier companion with no surprise costs; Joi has more visual extras but they cost more.