Draft at 480P, Finish at 720P or 1080P: When It Saves Credits, When It Does Not

Quick answer: Drafting means generating every segment at Wan 3.0 · 480P (10 credits a second), fixing the storyboard and the sheets where a shot is wrong, and only then regenerating the segments you keep at Wan 3.0 · 720P (19/s) or Wan 3.0 · 1080P (38/s). The draft pass is one extra full pass at the cheap rate, and it pays back only through retakes: each retaken second costs the draft rate instead of the final rate. Finishing at 720P, the gap between the two rates is too small for that to pay back unless most segments need more than one retake; finishing at 1080P, a few retakes make it roughly even and more retakes make it cheaper.
Still from “Crimson Vow”, an AI short drama generated end-to-end by SceneMixer (4 characters, 1 episode)
Sample: “Crimson Vow” — Realistic HD, 1 episode, produced end-to-end by SceneMixer from the script · watch the episodes

On the timeline, hover a segment that has been generated twice: the version switch shows both takes and their tiers.

The workflow

1. Generate every segment at the default 480P tier. 2. Watch each one and note what is wrong — a face, an action, a room, a line. 3. Fix the cause where it lives: the sheet in Step 2, the description, the shot text, the state pick. 4. Regenerate the fixed segments, still at 480P, until the shot is right. 5. Switch the selector to 720P or 1080P and regenerate the segments you keep, once. 6. Composite. The mistakes are found at the cheap tier; the expensive tier is paid once per segment — at the price of paying for the whole episode once more at the cheap tier.

The preview pane of a finished segment with share and download controls
Each segment keeps its versions; the composite uses whichever version is active on the timeline.

The numbers for a ten-segment episode

Ten segments of 12 seconds is 120 seconds of video. Drafted at 480P: 120 × 10 credits. Say four segments need a second draft: another 48 × 10. Then a final pass of all ten at 720P: 120 × 19. Compare generating straight at 720P and redoing those four there: 168 × 19. Here the draft route costs more: the extra 120 seconds at 10 outweigh the four retakes it made cheaper. Run the same episode to 1080P and the two routes come out roughly even: 120 × 38 plus the drafts against 168 × 38. The rule: the draft pass costs the whole episode once at the draft rate, and saves the difference between the two rates on every retaken second. It wins in credits when the final tier costs several times the draft tier and you expect several retakes. A full episode budget, line by line: Where Your Credits Go in One Episode.

What the draft cannot tell you

480P shows composition, action, faces, timing and dialogue — everything that comes from the storyboard. It cannot show fine texture, and a stylised look flattens more at 480P than a realistic one. Judge the shot, not the pixels: if the face and the blocking are right, the 1080P take will be the same shot, sharper. If the face drifts at 480P, it will drift at 1080P too — My Character’s Face Changed.

Versions, and which one the composite uses

Every generation of a segment is kept as a version. The timeline shows the active one; switch between them from the segment’s version control, and the composite joins the active version of each segment. So a 480P draft can stay active for a segment you are still deciding on while others are already at 1080P. Downloads follow the active version too. Composite and Share an Episode.

When to skip the draft

A single short segment, a shot you have already generated successfully in a neighbouring episode, or a project where the first draft came out right for every segment: go straight to the final tier. Finishing at 720P, drafting is a working method, not a saving: it keeps the look-and-fix loop cheap per attempt, and costs a little more overall. Finishing at 1080P with a new cast or a new set, where several retakes are likely, it is the cheaper route.

RouteSeconds generatedWhere the money goes
Draft 480P, retake four, final 720P120 + 48 at 480P; 120 at 720PMore than going straight to 720P
Straight to 720P, retake four168 at 720PCheaper here: the rates are close
Draft 480P, retake four, final 1080P120 + 48 at 480P; 120 at 1080PRoughly even with straight 1080P; cheaper with more retakes
Straight to 1080P, retake four168 at 1080PEvery mistake paid at 38/s

FAQ

Can I upscale the 480P draft instead of regenerating?

No. A higher tier is a new generation of the same shot; there is no upscaling.

Will the 1080P take look the same as the 480P draft?

Same storyboard, same sheets, same references, so the same shot in most cases; small differences in motion are normal.

Do drafts count against anything?

Only credits. There is no count limit on versions; versions that are not active and older than 90 days are removed.

Is 720P enough for phones?

Yes for vertical short drama on phones; 1080P for landscape or larger screens.

Does the composite cost depend on the tier?

No. The composite is priced per second of the episode, whatever tiers the segments used.

Pick the route by the final tier

Finishing at 1080P with several retakes ahead: draft first. Finishing at 720P: go straight.

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Updated September 27, 2026

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