CampaignReel

Ad placement specs against what generators output

What each generator emits, measured against ad specs

A tool sheet records three numbers a media buyer needs before committing: how long one generation can run, which ratios come out of it, and at what resolution. All three are read from the vendor's own pages. As of 2026-09-12.

The three numbers a buyer needs before a generator is pickedMaximum single generation, output ratios and published resolution decide whether a tool can serve a placement. Each of the three is usually stated on a different page of a vendor's site, in a different unit, and none of them appear in the demo reel that prompted the question.Clip ceilingLongest single passSecondsDecides generate or assembleRatiosWhat comes outA list, sometimes one entryDecides crop or re-renderResolutionPublished output sizePixels or a tier nameDecides whether it passes reviewOne row on a tool sheetWhere the number usually lives
Fig. 1 Quality is the fourth question and the one everyone asks first. It only matters once these three clear the placement.

Those three numbers decide whether a campaign can be generated or has to be assembled. A fifteen-second placement and a ten-second generation ceiling mean an edit, a cut and a continuity problem, none of which appear in the brief.

Vendor pages state the numbers in different units and in different places. A duration on a pricing grid, a ratio in a help article, a resolution in a feature list. The sheet puts them in one row and says where each one came from.

Where a number is not published, the sheet leaves it empty and says so. A missing ceiling is a scheduling risk, not a generous one.

1The generators

  • SceneMixer — How many generations each YouTube ad format takes on SceneMixer, based on the length limits the vendor publishes and the durations Google states.
  • Pika — How many generations each YouTube ad format takes on Pika, based on the length limits the vendor publishes and the durations Google states.
  • Amazon Nova Reel — How many generations each YouTube ad format takes on Amazon Nova Reel, based on the length limits the vendor publishes and the durations Google states.
  • CogVideoX — How many generations each YouTube ad format takes on CogVideoX, based on the length limits the vendor publishes and the durations Google states.
  • Google Veo — How many generations each YouTube ad format takes on Google Veo, based on the length limits the vendor publishes and the durations Google states.
  • Grok Imagine — How many generations each YouTube ad format takes on Grok Imagine, based on the length limits the vendor publishes and the durations Google states.
  • Hedra — How many generations each YouTube ad format takes on Hedra, based on the length limits the vendor publishes and the durations Google states.
  • HeyGen — How many generations each YouTube ad format takes on HeyGen, based on the length limits the vendor publishes and the durations Google states.
  • LTX-Video — How many generations each YouTube ad format takes on LTX-Video, based on the length limits the vendor publishes and the durations Google states.
  • MiniMax — How many generations each YouTube ad format takes on MiniMax, based on the length limits the vendor publishes and the durations Google states.
  • PixVerse — How many generations each YouTube ad format takes on PixVerse, based on the length limits the vendor publishes and the durations Google states.
  • Runway — How many generations each YouTube ad format takes on Runway, based on the length limits the vendor publishes and the durations Google states.
  • Wan 3.0 — How many generations each YouTube ad format takes on Wan 3.0, based on the length limits the vendor publishes and the durations Google states.

Thirteen generators have a full sheet. The two that do not still hold their rows on the published-limits page, and each cell they fill has a page of its own under the spec axes.

Elsewhere in the kit: Placements, Axes, Pairs, Questions, Terms, Learn, Data. How a spec gets onto a sheet is set out on the method page.