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How to Make Videos with Muse: From Script to Finished Clips

By the MuseCodes teamUpdated October 27, 20269 min read

Muse can generate short video clips from a written description. A single clip is easy. A full video, like a ten-minute YouTube documentary, takes planning; for the whole process from research to upload, see making a YouTube documentary with AI. This guide shares the workflow we use to produce long-form AI videos with Muse, from a finished script to a folder of clips ready to edit.

What to expect from Muse video

Meta announced its Muse Video model in July 2026, with native audio support, and it’s currently in a limited beta, so not every account has video yet. Read what Muse Video is for the current status. Meta has said it is still improving audio-video syncing and fast, physically accurate motion, so expect the best results from steady, well-described shots rather than fast action.

In our own work, each clip comes out at about 10 seconds. That length shapes everything: a longer video is really a sequence of 10-second shots that you join together in an editor afterwards.

Step 1: Start from a finished script

Write and lock your narration before generating anything. Changing the script after you’ve made clips means regenerating them, which costs time and tokens. Read the script out loud and time it. Roughly 25 to 30 spoken words fill one 10-second shot.

Step 2: Break the script into shots

Go through the script line by line and decide what the viewer should see while each part is spoken. Each shot gets:

Group shots into blocks of about six. A block is a natural chunk of the story, such as a scene or a chapter, and it’s a manageable amount to generate and review at once.

Step 3: Write good video prompts

A video prompt needs everything an image prompt needs, plus movement. Describe:

  1. The subject and action: who is in the shot and what they do during the 10 seconds.
  2. The setting and period: where and when, with details that matter for accuracy.
  3. The camera: how it moves, such as a slow push-in, a static wide shot, or a gentle pan left.
  4. Light and mood: time of day, weather, colour.
  5. Style: realistic documentary footage, 3D animation, archival film look, and so on.
  6. What to avoid: such as “no on-screen text, no captions, no modern objects”.
Example shotShot 2.3 — A slow push-in on a coastal village of wooden houses in 1893 as dark storm clouds roll in over the sea. Palm trees bend in rising wind, a few villagers hurry indoors. Overcast grey-green light. Realistic documentary footage, 16:9. No on-screen text, no modern objects.

One clear action per shot works better than several. “A woman opens the door and looks out at the storm” is reliable. “A woman opens the door, runs across the yard, grabs a child and climbs a tree” is likely to fall apart within 10 seconds.

Step 4: Set up your characters first

If the same person appears in several shots, they need to look the same every time. Before generating any video, create a character sheet image for each recurring character and use it as a reference in every shot they appear in. This is the single biggest quality improvement for story videos. Our consistent characters guide explains how.

Step 5: Generate block by block

Rather than sending prompts one at a time, put a whole block of shot prompts into one document, with the character sheet images placed above the shots they belong to, and give Muse the document. Muse reads both the prompts and the embedded images, so you don’t have to paste each one in by hand.

In our experience, about six clips per message is a comfortable batch. Ask Muse to name each clip after its shot number, which saves a lot of sorting later.

Step 6: Review every clip

Watch each clip before moving to the next block, and check for:

Regenerate only the clips that fail. Fixing problems block by block is much easier than discovering them all at the end.

Step 7: Assemble in an editor

Download the clips and line them up in your video editor in shot order. Add your narration track, then trim each clip to fit. Use gentle cross-dissolves between shots in the same scene, and hard cuts for scene changes. Music and sound effects underneath help hide small jumps between clips.

Keep your project organised

A ten-minute video can mean 60 or more clips. A few habits keep it manageable:

A note on tokens

Video uses far more tokens than text or images. Generate one test clip to check the look before running a full block, and see our tokens guide for more ways to make your allowance last.

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