Liftoff video creative specs: 1080x1920, 300 MB, 180 s

Liftoff's creative guidelines list portrait video at 9:16 and 1080 by 1920, MP4 or MOV, up to 300 MB and 180 seconds, and landscape video at 16:9 and 1920 by 1080. Sume's Timeline 1.0 renders 1080 by 1920 by default and can render 1920 by 1080 when you set the output size, so one project can feed both.

Liftoff's table

Liftoff's page gives no maximum file size or duration for landscape and no audio requirements, so do not assume the portrait limits carry over. It also lists a portrait end card image at 1080 by 1920 in PNG, JPG or GIF with a 1 MB cap.

One cut, two orientations

Timeline video clips carry a fit of cover, contain, stretch or blur. For a landscape source going into a portrait frame, blur fills the bars with a blurred copy and cover crops to fill. Pick by looking at the still: a product on a table survives cover less often than a face does.

Output width and height accept 256 to 2160 and fps accepts 24, 25, 30 or 60, so both of Liftoff's sizes are inside the range. The price is $0.10 per ceil output minute, so a 30 second portrait render and a 30 second landscape render are $0.20 together.

Limits to plan for

Sume's timeline audio spine runs 1 to 1800 seconds, so the 180 second portrait ceiling is inside what a timeline can hold.

Sume does not give you a size field, so check the exported file against 300 MB. The end card is a still: make it with the Images API at a 9:16 aspect and check the PNG against the 1 MB cap yourself, because the Images docs publish aspect_ratio per model, not file weight.