Use case
An AI influencer is a face you can post again
The job is not a character in a film. It is a presenter you can put on the same kind of clip next week without booking a shoot or using your own face.
Pick the format first. Search the niche on TikTok, sort by likes, and stay inside the last 3 months, or 6 if that view is empty. Open the account. If they post the same kind of clip on a rhythm, you have something to clone. A single spike is a lucky hit, and a lucky hit does not become an influencer.
Keep the face still
Make one avatar and reuse it. The account is recognizable because the face does not change every upload. Change the format when a format stops earning watches. Do not change the face because a clip felt flat.
Use avatar transfer when the cuts, the room, and the framing are the point. That path keeps the edit and swaps the person. Use motion transfer when you have a still and the movement itself is the format, which is common for dance and gesture clips. The difference is spelled out in Avatar transfer and Kling.
Say what the account is
Do not build the avatar from a real private person's face, and do not write the bio as if a living creator is speaking. A synthetic presenter can still sell. Pretending it is someone else is how the account gets reported and how the product gets associated with a lie.
Original voice keeps the source audio. If the account should have its own voice, spend the extra credit on a catalog voice or a sample you record. Put the product in the caption. Most of these clips are a person talking, not a commercial with your package in their hand.