The short answer
Pick Candy AI if you want one subscription that covers chat, images and voice. Pick Nomi if conversation quality and memory are the point and generated pictures leave you cold.
Conversation
Nomi wins. It holds a thread longer, stays in character more consistently, and follows your lead instead of steering. Candy AI is fluent but more eager — it will push the conversation somewhere rather than let a silence sit.
Media
Candy AI wins, and not narrowly. Its image generation keeps a character consistent from one picture to the next, which is the hardest thing in this category. Nomi's images exist; they are not a reason to choose it.
Price and what you get
Candy AI costs less and covers more features per dollar. Nomi charges more for a narrower product that is excellent at its one thing. Neither has a forced annual plan, and both have a free tier too thin to judge them by.