AI Workflow for Consistent Character Visuals

An AI workflow for generating character-consistent visuals with MidJourney

Sometimes, one word in a prompt can change everything. This project was born from that exact frustration, how can we ensure character consistency across storyboarding scenes using AI tools that don’t "remember" anything?

Alongside a teammate, I began with tool research and visual exploration. What started as a trial of existing solutions quickly turned into building a streamlined custom workflow using MidJourney, reference images, and a fine-tuned GPT model trained for consistent scenario-based prompts.

The result? A process that gave us creative control, visual continuity, and zero need for post-editing

We began by diving into what was already out there.

Explored AI tools like:

OpenArt — good for image referencing

OpenAI’s image model — built-in consistency flow

Runway & Leonardo — for initial testing

MidJourney — where we eventually settled

While OpenAI was the strongest contender for consistent characters due to its built-in memory tools, it proved expensive and slightly inflexible when it came to prompt nuance.

That’s when we realized:

It would be more efficient — financially and creatively — to create our own workflow with what we had.

Style & Prompting Exploration

I began by narrowing down:

Visual styles aligned with the client/brand language

Consistent features for each main character

Common prompt issues that broke visual flow

Prompting wasn’t just part of the process -> it was the process.

Even a minor shift in tone or structure completely changed the output. So we needed a way to standardize it across 20+ scenarios.

This is where we built a system that made everything click.

The Workflow:

Selected a base visual style

Created key reference images for each character

Trained a custom ChatGPT model to respond with scenario-specific prompts based on our storyboard

These prompts were predefined and locked — we didn’t need to “generate,” just retrieve the right one

Over 20 different customer journey scenes

Plug-and-play consistency

No manual rewriting or post-editing

Once the system was in place:

Upload the relevant reference image into Discord ->

Just a cohesive, beautiful storyboard — faster than we imagined.

📌 No Photoshop required.📌 No re-prompting.📌 No visual inconsistency.

Oh — and yes, I even got the hands right. If you’ve ever dabbled with AI-generated art, you know that’s basically sorcery. Consider this my unofficial badge of MidJourney mastery 🧙‍♂️🖐️

you can’t hack consistency unless your language is consistent.

the more you define upfront, the more freedom you get visually.