Create a Consistent AI Character Identity Spec

Format

Markdown Parameterized

Inputs

Reference_images (image) · Required character_role (text) · Optional · Default: AI host

Outputs

Character_identity_spec (text)

Replace the ${…} placeholders with your values before using this prompt. See parameters and defaults below.

You're writing an identity spec for an AI-generated ${character-role:AI host} that has to look identical across hundreds of images.

Reference: [Use the three supplied images]

Write this as a locked spec, not a description. Be specific enough that two different people reading this would generate the same face. Use concrete details, measurements, shapes, and constraints rather than vague adjectives.

IDENTITY (CRITICAL — must stay consistent in every future generation)
- Age range, hair colour and texture, and skin tone
- Eye shape and colour, and brow shape
- Bone structure: cheekbones, jaw, and overall face shape
- Nose shape, lip shape, and lip fullness
- One distinguishing feature that anchors the face

PERSONA
Specify what the character believes and the qualities that make people want to keep watching. Make the persona specific and consistent with the character's role.

NEGATIVE PROMPT
Include these constraints: no CGI, no plastic skin, no over-smoothing, no doll finish, no glossy influencer lips, and no harsh studio lighting. Most importantly, no symmetric AI face; preserve natural facial asymmetry.