Frame rate: the property almost nobody publishes
Frame rate is the number of frames delivered per second. It decides whether motion reads as continuous or stepped, and it is the emptiest column on a generation specification, because nothing about it is usually billed or requestable. As of 2026-09-12.
| Where it appears | Why | What a buyer can do |
|---|---|---|
| Model cards and user guides | The frame count is the quantity being budgeted | Read it |
| Rate cards | It is not charged for | Nothing; it is absent |
| API references | It is rarely a request field | Nothing; it is absent |
| Ad specification pages | No surface here states a required rate | Nothing to comply with |
Inclusion rule. Kinds of page that state a frame rate, with the reason each does or does not. Rates reachable by interpolating frames afterwards are a post-process. Order. The kind of page most likely to state it first.
1Nothing rejects a low rate, which is the problem
No ad surface in this genre publishes a required frame rate, so a piece at a very low rate uploads, runs and is charged for. The consequence is entirely in how it reads beside the filmed content around it.
That makes it a craft question wearing a specification's clothes. It can be recorded where a page states it and otherwise only measured on a delivered file.
2Interpolation is a separate deliverable
Raising a rate after generation is possible and is a processing stage of its own, with its own artefacts on fast motion. It also moves the output away from whatever a page described.
A register stays on the published figure for that reason. What a pipeline can achieve with extra steps is unbounded and unverifiable; what a page states is one number.
3Where it is published it usually explains something else
On pages that state a frame count as the length, the rate is the divisor that turns that count into seconds. On pages that state a fixed format, it is one more single value beside a single resolution.
Either way it tends to appear because the document was written for somebody running the model rather than buying an outcome. That is a reliable signal about what else the page will and will not say.
A vocabulary entry: the definition, plus how the specification pages on these sheets usually publish it. Table checked 2026-09-12. Nearby entries: Pixel floor, Ephemeral upload.
4From brief to placement
For ad work around “Frame rate”, SceneMixer's pages explain how its ad projects are produced:
16:9 landscape (SceneMixer's default) and 9:16 vertical (the usual short-drama frame), chosen per project.
SceneMixer, Seedance 2.0 in a Real Short-Drama Pipeline — “Which aspect ratios does the pipeline generate?” (read 2026-10-13)
Video is 16:9 landscape by default, with 9:16 vertical available; you set it once per project. Segments are typically 4 to 15 seconds, and some model tiers go to 30.
SceneMixer, AI Short Drama Generator — “What length and aspect ratio does it output?” (read 2026-10-13)