How do you keep AI video consistent across multiple shots?

Why shots drift apart

A video model creates each clip by starting from random noise and turning it into frames that match the prompt. Two generations from the same prompt start from different noise, so they come out with a slightly different face, a different coat button, a different window behind the actor. Inside one clip the model keeps things stable because it sees all the frames together. Between two separate clips it has no memory at all.

Researchers describe the same gap. The paper Long Context Tuning for Video Generation (2025) notes that models able to make long single shots still struggle to make coherent multi-shot scenes, and it proposes extending the model's attention across all the shots of a scene so that it learns scene-level consistency. Some commercial models now advertise native multi-shot generation; the Seedance 1.0 technical report, for example, lists multi-shot narrative coherence with consistent subjects as a feature.

Native multi-shot features help, but at the time of writing they are limited to short sequences inside one generation. A short film or an episode is still built from many generations, so the methods below remain the core of the work.

What must stay the same: the continuity sheet

Film crews keep continuity notes so that a scene shot over several days looks like one moment. Do the same before you write any prompt. Each line below is a short, fixed text block or a reference image that you reuse unchanged.

Method 1: references instead of descriptions

Text alone is a weak anchor. "A woman with short black hair" matches millions of faces. A reference image is a much stronger anchor because it fixes one face. Many tools at the time of writing accept subject or character reference images: Google's Veo documentation, for example, describes a reference mode where one to three images of a person, character or product are used so that the subject's appearance is preserved in the output.

Build the references first, in still images, where retries are fast:

1. A character sheet: the same person from the front, three-quarter and side, plus a full-body view in the final costume, on a plain background.
2. A location still for every place in the scene, at the final aspect ratio.
3. A key prop sheet if an object matters to the story.

Use plain, even light on the character sheet. A strong colored light in the reference tends to be copied into every shot, which then fights the light of each scene.

Method 2: chain shots with frames

When two shots must flow into each other, such as one continuous action split in two, connect them through frames instead of text.

• Last-frame chaining: export the final frame of shot A and use it as the first frame of shot B in image-to-video. The start of B then matches the end of A exactly.
• First and last frame: if the tool supports both, give it the frame where the shot must start and the frame where it must end, and let the model fill the motion. This is useful when shot C must arrive at an already-planned keyframe.
• Keyframe storyboard: make all keyframes from the same references first, check them together, then animate each one.

Chaining has a cost. Small errors build up: a slightly softer face at the end of shot A becomes the starting face of shot B, and after several links the character can drift. Re-anchor every few shots by starting from a fresh keyframe made from the original reference, not from the last frame.

Method 3: write prompts that share blocks

Treat the prompt as fixed blocks plus one changing block. Only the shot block changes from shot to shot.

[CHARACTER] Leo, a man in his 20s, curly brown hair, round glasses,
mustard-yellow knit sweater, dark blue jeans.
[LOCATION] Small bookshop interior, tall wooden shelves, one large front window.
[LIGHT] Late afternoon sun through the front window from screen right, warm tones.
[SHOT] Medium shot, eye level. Leo pulls a red book from the shelf and opens it,
facing screen left. Slow push-in.

For the next shot, copy the first three blocks exactly and replace only the [SHOT] block. If the story moves to a new place or a new time of day, write a new [LOCATION] or [LIGHT] block once and reuse that one from then on.

Method 4: hide what you cannot fix in the edit

Even with references, a few differences will remain. Editors have long used techniques that make small mismatches invisible:

• Cut on action. Cut in the middle of a movement; the eye follows the motion and misses details.
• Change shot size at each cut. A wide shot followed by a close-up hides a different background; two medium shots in a row expose it.
• Use inserts and cutaways. A shot of hands, an object or the place gives the viewer a break between two shots of the face.
• Grade the whole sequence together. Apply one color correction on top of all clips so the light feels consistent.
• Put one continuous sound under the cuts. Room tone or music running across several shots makes them feel like one moment.

A quality check before you publish

Watch the sequence three times, each time looking for one kind of problem:

1. Identity: freeze on each face and compare it with the reference. Check age, eye color, hair line, glasses and scars.
2. Objects: follow each prop and garment from shot to shot. Check which hand holds what.
3. Space and time: check screen direction, the light direction and the weather outside windows.

Regenerate only the shots that fail. Keep a log of the reference image, prompt and settings for each accepted shot, so that you can make a matching replacement later.