Build one reusable identity file for AI images and video — then use Astra to control the style.

Most people generate one good AI photo and stop there.

The problem: the face drifts, the profile changes, the wardrobe mutates, and video models start treating the same character like a different person.

This workflow gives you a reusable reference stack so you can keep the same person across GPT Image, Higgsfield, Seedance, HeyGen, and whatever comes next.

The framework

Identity → Style → Scene → Motion

• Identity = who the person is
• Style = how the image should look
• Scene = where they are and what is happening
• Motion = how they move

If you separate those four jobs, consistency gets much easier.

1. Build your master character reference file

Start with one clean photo where the face is clearly visible.

Upload it into ChatGPT and generate a multi-angle character sheet with:

• close-up front
• chest-up front
• 45° left
• 45° right
• 90° left profile
• 90° right profile