Consistent Character & Style

One of the biggest challenges in AI generation is maintaining consistency across multiple images. This guide covers techniques for achieving visual coherence.

The Consistency Challenge

When generating multiple images, you often need:

• 👤 Same character across different scenes
• 🎨 Consistent style across a campaign
• 🏢 Brand coherence across all assets
• 📸 Matching aesthetics for a series

Without careful technique, each generation can look different.

Technique 1: Reference Images

Concept

Use an existing image to guide new generations.

Workflow

[Upload (Reference)] → [Image Node]
                            ↑
                   [Text: New Scene]

How It Works

1. Upload your reference — The image you want to match
2. Describe the new scene — What's different
3. Emphasize consistency — What should stay the same

Prompt Template

[Subject] exactly as shown in the reference image, 
now [new scene/pose/action], 
maintain exact [features to keep consistent], 
[style and lighting matching reference]

Technique 2: Detailed Subject Descriptions

Concept

Describe your subject in extreme detail and reuse that description.

Creating a Subject Description

Write a comprehensive description:

SUBJECT DESCRIPTION:
A young woman with:
- Shoulder-length auburn hair, slight wave
- Green eyes, light freckles
- Oval face shape, warm skin tone
- Wearing: white linen blouse, gold necklace
- Expression: confident, approachable smile

Using the Description

Include in every prompt:

[Full subject description], 
[new scene/action], 
[style and lighting]

Benefits

• Consistent across generations
• No reference image needed
• Can adjust specific elements

Technique 3: Style Guide Prompts

Concept

Create a reusable style definition.

Creating a Style Guide

Define your visual style:

STYLE GUIDE:
- Lighting: Soft, diffused, warm golden hour
- Color palette: Earth tones, terracotta, cream
- Mood: Warm, inviting, authentic
- Photography style: Lifestyle, candid moments
- Quality: Professional, editorial
- Post-processing: Slight warmth, soft contrast

Using the Style Guide

Append to every prompt:

[Scene description]

Style: [paste style guide]

Benefits

• Consistent aesthetic across campaign
• Easy to share with team
• Adjustable for variations

Technique 4: Flux Kontext for Consistency

Why Flux Kontext

Flux Kontext models are specifically designed for:

• Maintaining subject identity
• Consistent character appearance
• Precise control over changes

Workflow

[Upload (Subject Reference)] → [Flux Kontext Pro/Max]
                                        ↑
                               [Text: New Scene]

Prompt Strategy

The exact same [subject] from the reference image, 
in a new scene: [describe scene], 
maintain identical [face/clothing/features], 
only change [what should change]

Technique 5: Seed Consistency

Concept

Use the same seed for related generations.

How Seeds Work

• Same seed + same prompt = same image
• Same seed + modified prompt = related variation

When to Use

• Creating slight variations
• Testing prompt changes
• Building a series with subtle differences

Workflow

1. Generate an image you like
2. Note the seed number
3. Use same seed for variations
4. Modify only specific prompt elements

Technique 6: Batch Generation Strategy

Concept

Generate all related images in one session.

Why It Helps

• Same model state
• Consistent prompt patterns
• Easier to maintain style

Process

1. Prepare all prompts before starting
2. Use the same style suffix for all
3. Generate in sequence or parallel
4. Review as a set and regenerate outliers

Building a Character Bible

What to Include

Create a document with:

CHARACTER: Sarah

PHYSICAL:
- Age: Late 20s
- Hair: Auburn, shoulder-length, slight wave
- Eyes: Green
- Skin: Fair with light freckles
- Build: Athletic, medium height

STYLE:
- Wardrobe: Modern professional, earth tones
- Accessories: Simple gold jewelry
- Makeup: Natural, minimal

EXPRESSION RANGE:
- Default: Confident, warm smile
- Professional: Focused, determined
- Casual: Relaxed, genuine laugh

REFERENCE IMAGES:
[Link to approved reference images]

Using the Bible

• Copy relevant sections into prompts
• Ensure team uses same descriptions
• Update as character evolves

Consistency Across Platforms

Challenge

Different platforms need different formats but same style.

Solution

1. Create master prompt with full style guide
2. Generate hero image at high quality
3. Adapt for platforms:
   • Same style keywords
   • Adjusted composition for aspect ratio
   • Consistent lighting and color

Example

Master prompt:

[Full scene description]
[Full style guide]
16:9 aspect ratio

Instagram adaptation:

[Same scene, adjusted composition]
[Same style guide]
1:1 aspect ratio

Common Consistency Issues

Problem: Face Changes

Solution:

• Use Flux Kontext with reference
• Include detailed facial description
• Specify "maintain exact facial features"

Problem: Style Drifts

Solution:

• Use complete style guide every time
• Copy-paste, don't retype
• Include specific color values if possible

Problem: Lighting Varies

Solution:

• Describe lighting in detail
• Include time of day
• Specify light direction and quality

Problem: Clothing Changes

Solution:

• Describe outfit completely
• Include colors, patterns, accessories
• Reference specific items

Workflow for Consistent Series

Step 1: Establish the Look

1. Generate several options
2. Choose the best as reference
3. Document what makes it work

Step 2: Create Templates

1. Write master prompt with all details
2. Create style guide section
3. Note successful settings (model, seed, etc.)

Step 3: Generate Series

1. Use reference image for each
2. Apply same style guide
3. Vary only what needs to change

Step 4: Quality Check

1. Review all images together
2. Identify inconsistencies
3. Regenerate problem images

Next Steps

• Multi-Step Workflows — Complex pipelines
• Image-to-Image — Transform existing images
• Creating Apps — Automate consistent generation