How to Create Consistent AI Characters Across Scenes

Why it's hard

Diffusion models don't have a persistent "memory" of a character. Every generation starts from scratch — even the same prompt with the same seed will only give you the same character if the seed happens to hit the same latent space.

To get true consistency you need to give the model a reference. Three ways to do that:

1. Reference image + IPAdapter (easy)

Give the model your character reference at generation time. IPAdapter (or Flux's native image conditioning) will try to match the visual features.

• Effort: low
• Consistency: good, not perfect
• Cost: no training, small per-generation compute overhead
• Best for: fast iteration, one-off scenes

2. LoRA trained on the character (medium)

Train a LoRA on 20–50 images of your character in varied poses. Load it at generation time.

• Effort: 30 min setup + 2 hrs training + $2-5 GPU cost
• Consistency: very good
• Cost: one-time training, no per-generation overhead
• Best for: recurring characters used regularly

3. Full model fine-tune (advanced)

Fine-tune the base model itself on your character. Rarely worth it unless the character is at the center of your entire product.

• Effort: days
• Consistency: excellent
• Cost: significant compute, ongoing maintenance
• Best for: game studios, animation studios

The Imagoat approach

Imagoat's Character Studio (coming soon) automates path 1 and 2: upload references, get a reusable character. Drop it into any prompt and the model matches the face and outfit.

Prompting tricks that help either way

• Describe the character once, in detail, at the start of every prompt
• Keep the outfit description identical across scenes
• Use the same seed for related scenes when possible
• Generate 4 variations per scene and pick the best face match