Model identifier: a name that changes the limits
A model identifier names which model a request runs against. Usually it reads as plumbing. On pages that publish different ceilings per model it is a specification field, and a request against the wrong one is quietly capped. As of 2026-09-12.
| What the identifier can decide | Typical form | How the failure appears |
|---|---|---|
| A longer run | A second identifier for anything past a first step | The result comes back short |
| A resolution ladder | Different rungs on each model name | A tier is simply unavailable |
| A duration rule | A version string with its own rule | A value is rejected with no mention of versions |
Inclusion rule. Kinds of limit a page can attach to a model identifier or version. Limits attached to a priced tier are recorded separately. Order. Most consequential kind first.
1It belongs in the brief, beside the length
Where a ceiling only exists on one identifier, the identifier is part of the ceiling. Writing a shot list against the figure without the name produces a plan that cannot be executed as specified.
The practical habit is to record the identifier next to every figure taken from a page that publishes more than one. It costs a few words and removes an entire class of quiet failure.
2The failures do not mention the cause
A capped result looks like a quota problem. A missing tier looks like a bug. Neither error says anything about model names, and the page that would have explained it was read weeks earlier.
That is why a condition of this kind belongs in the same cell as the value it governs rather than in a note somewhere else on the sheet.
3A suffix is not a ranking
Where two models differ on a page, the one with the more impressive name is not reliably better on every column. It can carry a higher duration floor and a lower resolution ceiling at the same time.
So a register carrying one line per vendor would be wrong for half the requests made against such a page. Each documented model earns its own reading.
A vocabulary entry: the definition, plus how the specification pages on these sheets usually publish it. Table checked 2026-09-12. Nearby entries: Increment, Adaptive shape.
4From brief to placement
For ad work around “Model identifier”, SceneMixer's pages explain how its ad projects are produced:
Every character, scene and prop card can carry a short list of the other names your script uses for the same thing.
SceneMixer, Also Called: Nicknames, Old Names, and How the Storyboard Knows Who Is Who (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)