Guide · AI characters & video
How to Make a Consistent AI Character — for AI Influencers, Ads and Kling 4.0 Video
Short answer: A consistent AI character comes from pinning every visual detail down once and reusing it: write a character bible in exact visual facts, generate a reference sheet (front, three-quarter, profile, key expressions and outfits), compress it into a short block you paste into every prompt, and feed the reference images to tools that accept them — Kling 4.0 takes up to 15 references and 10 keyframes per clip.
Why faces drift
Image and video models do not remember your character between generations. Every prompt that says “a young woman with brown hair” is an invitation to invent a new young woman with brown hair. The fix is to remove the freedom: concrete facts, the same words every time, and reference images wherever the tool accepts them.
Step 1 — Write the character bible
Describe the character only in things a camera can see: “oval face, light olive skin, almond-shaped dark-brown eyes, straight thick eyebrows, a small scar through the left eyebrow, shoulder-length wavy black hair with a centre parting.” Never “beautiful” or “attractive” — those words mean nothing to a renderer. Add a signature outfit with exact colours and a three-colour palette.
Step 2 — Generate a reference sheet
From the bible, generate a neutral-light sheet: front, three-quarter and profile views, three expressions, and the main outfits. Pick the best images and keep them in one folder. These become the references for every future shot.
Step 3 — Compress it into one block
Squeeze the bible into about 60 words of visual facts and paste that exact block into every image and video prompt. Change the action, the camera and the location around it — never the block.
Step 4 — Use references and keyframes in video
- Kling 4.0 (October 2026): clips of 3–30 seconds, up to 10 keyframes and 15 references — ideal for holding a character through a scene.
- Start from a first frame: approve a still of the character in the scene, then animate it. Cheaper than regenerating video.
- Draft, then final: test motion at lower cost first (Seedance’s draft mode, 720p), render the final only when the shot works.
- Check the cuts: drift shows at the joins between clips first.
Turning a character into an AI influencer
An AI influencer is a consistent character plus a consistent point of view: three or four content pillars, a posting rhythm, a voice that never changes and an honest AI disclosure. Tools such as Higgsfield’s AI Influencer feature speed up the visual side; the plan and the writing are what make people follow.
The full system
The AI Character & Video Studio turns all of this into a workflow: the Character Bible Builder, reference-sheet prompts, 30 video prompts for Kling 4.0, Seedance, Veo and Higgsfield, voice and lip-sync prompts, 12 installable skills and a 7-day plan to launch an AI influencer. For the image-to-video basics, see how to make a Higgsfield AI video.
AI Prompt & Skills is an educational toolkit; the AI tools mentioned are third-party and not affiliated with AI Prompt & Skills. Your results depend on your own effort.
Frequently asked questions
Why does my AI character's face keep changing?
Because each prompt asks the model to invent the person again. Without fixed visual facts and reference images, it lands on a slightly different face every time. Reusing the same description block and the same references removes that freedom.
What should a character bible include?
Name and age range, face shape, skin tone, eye colour and shape, eyebrows, nose, lips, distinguishing marks, hair cut and colour, body type, a signature outfit with exact colours, a colour palette, and how the character moves and speaks.
What does Kling 4.0 add for consistency?
As of October 2026, Kling 4.0 makes clips from 3 to 30 seconds and accepts up to 10 keyframes and 15 references (10 images and 5 videos), which makes it much easier to hold one character across a scene.
How do I keep the voice consistent too?
Pick one voice in a tool such as ElevenLabs and reuse the same voice for every clip, with the same pace and style notes. Generate the audio first, then drive the lip-sync from it.
Do I have to say an AI influencer is AI?
Platforms increasingly require labels for realistic AI-generated people, and audiences trust honest accounts more. Disclose clearly in the profile and use the platform's AI label where it exists.