How to keep the same AI character across every scene
Anyone can generate a character once. Generating them again — same face, new scene — is the actual craft, and it comes from a reference image, not a better prompt.
By Ideovex Team
To keep an AI character consistent, lock one canonical frame and generate every other view from that image rather than from words. A fresh text prompt gives you a cousin, not the same person. Reference-capable edit models take your locked frame and change the pose, wardrobe or setting while holding the face — which is the whole trick.
Why does my AI character change between images?
Because a text description is not specific enough to pin a face. "A woman with red hair and green eyes" matches millions of faces, so each generation samples a different one. Consistency comes from handing the model the actual pixels of your character as a reference, not from adding more adjectives to the prompt. Once you accept that, the workflow falls out naturally.
The three-step consistency workflow
- Find the character. Iterate cheaply on the image generator until one frame is unmistakably them. Give them one memorable feature — a scar, a jacket, an unusual hair colour — because distinctive silhouettes survive redrawing and generic faces drift.
- Lock it as the reference. That single frame is now your source of truth for the character. Do not re-describe them in words again.
- Generate everything else as an edit. Feed the canonical frame to a reference-capable model — Nano Banana Edit or Seedream 4.5 Edit — and change only the pose, expression, outfit or background.
Which models hold a face?
The ones built to take a reference image. Nano Banana (5 credits) and its edit variant are what most people reach for, because they read your reference frame instead of your description. Seedream 4.5 Edit and the Nano Banana Pro edit models do the same at the premium tier. A character sheet generated as a single set on one model will always be more consistent than six independent prompts.
Build a character sheet, not a pile of images
Produce the canonical set in one sitting: front, three-quarter, profile, plus two expressions. Profiles are the hardest angle — expect to re-roll those more than the rest. Then treat that sheet as your model library: every scene from here is a wardrobe or background edit on one of those views, not a new generation.
Taking the character into video
Once a frame is right, animate it. Image-to-video keeps the face you approved and only invents the movement, so your character survives the jump to motion. Explore poses on the free experimental pool at zero credits, then finish the keepers on a paid model. See the fuller character-design workflow for the shot list and budget.
The one rule that fixes most drift
Never re-describe the character in words once you have the frame. The moment you type the description again instead of attaching the reference, you have asked the model to invent a new person. Reference the frame; change only what needs to change.
