Do you generate AI characters that stay consistent across images and videos?

You generate a great AI image for marketing, then the next one looks like a distant cousin of the original. Different face, different colors, different vibe. This inconsistency confuses users and weakens brand recognition, especially when you’re trying to build a recognizable character like a mascot or product hero.

Why consistency matters

A consistent AI-generated character:

• Builds brand recognition and trust
• Feels intentional and professional
• Can be reused across marketing, product demos, and social media
• Saves time by avoiding repeated trial-and-error

If users can’t immediately recognize your character, the AI has failed the brand. Not the other way around.

Start with a single “source of truth” image

Always begin with one approved base image of the character.

Use this same static image as the reference for:

• Image generation
• Video generation
• Animation tools (e.g. Sora, Veo)

Store it in a shared, versioned location (e.g. design assets folder).

✅ Figure: Good example - One base image used consistently across multiple AI tools

Be explicit in your prompts

AI models will improvise unless you clearly tell them not to.

Include:

• Physical traits (species, colors, proportions)
• Clothing or accessories (or explicitly say “no clothing”)
• Mood, personality or expressions
• Camera framing and lighting
• Instruction to preserve the original character design

✅ Figure: Good example - Explicitly instructing the model to preserve the original character

Reuse the same reference across tools

While it is better to use the same AI tool for character consistency, different AI tools can still produce consistent results if you:

• Use the same base image
• Reuse or lightly adapt the same prompt
• Avoid letting the tool “reimagine” the character

This allows teams to mix tools (e.g. Sora and Gemini) without visual drift.

Document the process

If one person can do it, others should be able to repeat it.

Document:

• The base image used
• The exact prompts
• The tool and model (e.g. Sora, Gemini Veo)
• Any settings or options selected
• Known limitations or gotchas

✅ Figure: Good example - A documented, repeatable workflow

Use approvals for brand assets

Before publishing AI-generated characters:

• Get sign-off from design/brand owners
• Confirm colors match official brand assets
• Check motion quality with your video team (no choppy or awkward transitions)

Once approved, lock the base image and treat changes as a new version.

Summary

To keep AI-generated characters consistent:

• Start with one approved base image
• Be explicit in prompts about preserving design
• Reuse the same reference across tools
• Document the workflow so others can repeat it
• Treat AI characters as brand assets, not experiments