I have been making short AI-generated videos for a side project and keep running into the same wall: each clip looks fine alone but the character drifts between shots. Faces shift, lighting jumps, and color temperature moves. It is the kind of problem that makes a two-minute piece feel stitched together instead of directed.
What helped was treating the prompt as a persistent state rather than a one-off. I lock a seed, write a short reference paragraph describing the subject, and reuse it verbatim in every generation. When I need to test variations quickly, I run them through utopai video so I can compare shots side by side before committing to a batch. Small prompt edits are easier to judge that way.
The rest is boring discipline: keep a shot list, render in short segments, and re-check the first and last frame of each clip before moving on. Consistency is less about the model and more about refusing to change too many variables at once.
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