Character Consistency in AI: One Character Across a Series

TL;DR

• Two working routes in Pixyn: the AI Character builder (a reference portrait plus angles that keep the face) and models that work from a reference in the Studio.
• The builder is the fastest entry for a recurring hero; references in the Studio give flexibility for any scene.
• Uses: comics, storytelling, advertising, social media, children's books.

Why consistency matters

Typical tasks:

• A series of posts for a personal brand: your avatar in different scenes
• An ad campaign: the brand's "heroine" in all creatives
• A children's fairy-tale book: the main character in 20 illustrations
• A comic / manga: from 5 to 500 frames with one hero
• Educational content: a virtual mentor in a series of videos
• An e-commerce model: one "model" shows the whole collection

Without consistency, each generation gives a new person. That breaks the brand and the narrative.

Route 1: the AI Character builder

The AI Character builder is made exactly for a recurring hero.

How it works

1. You assemble a character from preset galleries by area (face type, hairstyle, eyes and so on) or upload your own photos.
2. The builder generates the reference portrait of the character.
3. From the reference you generate angles and poses: an image-to-image model keeps the face locked to the reference (identity lock).
4. The result is saved as a board: the reference, the frames and the character card.

When to use it

• A personal brand avatar in different scenes
• A brand character for a series of creatives
• A hero for a book or a comic, built once and reused

The builder is also available from the Pixyn Telegram bot through the "AI character" button.

Route 2: models that work from a reference

In the Studio you can pass a photo of the character as a reference to models that accept references:

• Nano Banana Pro: takes several references and holds the subject across new frames.
• FLUX Kontext and Flux 2: editing and generation from references, handy for "the same person, a new scene".
• Seedream 4.5 and 5 Pro: multi-reference Edit that holds the same subjects across frames.
• Ideogram Character: a dedicated mode for keeping one character in new images.
• Kling O1 and O3: reference-based video, when the hero needs to move.

An example

Reference: your photo, uploaded as an image reference.

Portrait of the person from the reference reading a book in a cozy library,
warm lamp light, vintage aesthetic, keep the face exactly as in the reference

Portrait of the person from the reference hiking a mountain trail at golden hour,
adventure vibe, keep the face exactly as in the reference

The same face in different scenes.

When to use it

• Quick personal projects
• Prototyping a scene before a series
• Scenes the builder's angles do not cover

Practical cases

Case 1: a personal brand avatar

50 Instagram posts with your face.

Recommendation: the AI Character builder or a reference in Nano Banana Pro.

Case 2: a children's book

30 illustrations in one style.

Recommendation: build the hero in the AI Character builder, then generate the scenes from the reference.

Case 3: an ad campaign

12 creatives with one (AI) model.

Recommendation: the AI Character builder plus an AI photoshoot.

Case 4: a comic

100 frames with the main hero and 3 secondary characters.

Recommendation: a separate reference for each character, one character per generation where possible.

Typical mistakes

1. A poor reference

A selfie in poor light gives a blurry result.

Fix: a quality photo in natural light, the face frontal.

2. An unstable hairstyle

The reference holds the face, and the hairstyle can drift.

Fix: fix it in the positive prompt: short blonde bob haircut.

3. Mixing characters

Two characters in one prompt confuse the model.

Fix: a separate reference per character and clear roles in the prompt ("the man from reference 1, the woman from reference 2").

4. Close-ups back to back

The closer the face, the stricter the viewer's eye.

Fix: hold recognizable anchors (a hairstyle, clothing, an accessory) and plan the edit so that two close-ups do not stand side by side.

What it costs in tokens

FLUX: from 2 tokens per image; Nano Banana: from 3; Ideogram: from 3. A series of ten frames of one character means dozens of tokens including rejects, not single units.

The studio shows the exact charge before you run it, so check against it rather than the article: the catalog gets updated. Pack contents are on the pricing page.

FAQ

Which route should I start with? With the AI Character builder if the hero will recur in many frames; with a reference in the Studio for a one-off scene.

Does it work with an AI-created character? Yes: build the character in the builder or generate a reference portrait, then use it as the reference.

Can I keep the character in a video? Yes: Kling O1 and O3 build a video from references, and image-to-video models animate a ready frame of your hero.

Summary

• The AI Character builder: a reference portrait and angles that keep the face
• References in the Studio: Nano Banana Pro, FLUX Kontext and Flux 2, Seedream, Ideogram Character
• Kling O1 and O3: the same hero in video
• Workflow: for series and storytelling, see the Workflow page

→ Create a consistent hero: start in the AI Character builder.

Sources

• Text-to-image models: why each frame is new