November 1, 2026 · NascoreAI team
Every AI video generator can make a character. The hard part — the thing that decides whether your short film looks like a film or a slideshow of strangers — is making the same character again in the next clip, and the one after that. Text prompts alone will not do it: a prompt describes a type of person, and the model re-rolls the details on every generation.
Consistency comes from giving the model something stronger than words. This is the workflow we built NascoreAI around, and it works with any generator that accepts reference images and first/last frames.
Everything anchors to a single reference image of your character. Make it boring on purpose:
If the reference is dramatic — heavy shadows, extreme angle, motion blur — the model inherits the drama and loses the face. You can always add drama in the scene prompt; you cannot add back a face the reference never showed.
Use the reference image for the first clip of every scene. This is the shot that re-establishes who this person is, so it gets the strongest identity signal your tool offers. Describe the action and the setting in the prompt, and let the reference carry the face, the hair and the costume.
For a continuation of the same shot — the camera pushes in, the character turns, the action continues — take the last frame of the previous clip and use it as the first frame of the next. The new clip starts exactly where the old one ended: same face, same light, same position. Chain two or three clips this way and a 10-second generator produces a 20–30 second continuous moment.
One practical rule from production: on most engines — including the MiniMax H3 family NascoreAI runs on — reference images and frame inputs are alternatives within a single generation, not layers you stack. So alternate them deliberately: reference-anchored clips open scenes, frame-chained clips continue them. Trying to force both into one call usually weakens both.
Write the character down once — age, face shape, hair, skin tone, signature clothing, a scar or an accessory — and paste the same description, word for word, into every prompt. It feels redundant. It is also the cheapest consistency insurance there is: any detail you leave out is a detail the model is free to reinvent.
Consistency is partly a numbers game: some generations drift no matter what you do. So iterate where it is cheap. Block out every shot in Draft mode, throw away the takes where the character drifts, and spend Final renders only on the compositions that held. On NascoreAI that is the difference between $0.59 experiments and $1.15 keepers — see our pricing for how the two modes map to credits.
A face reads as "the same person" more easily when it appears at a similar size and position in frame. Before a shoot, run your reference frame through our free grid overlay tool and note where the eyes and chin sit on the thirds — then compose new shots to match. It takes thirty seconds and removes a whole category of "something feels off" between cuts.
One clear reference image. Reference for scene openers, last-frame chaining for continuations. The same written description in every prompt. Drafts for experiments, finals for keepers. Do those four things and a per-clip generator stops being a slot machine and starts being a cast.