Holiday gift set video from 30 photos: the Sume attachments limit

For a gift-set video you can attach up to 30 images on one Format run. The same run has an overall media budget of 30 files, with at most 10 videos and 10 audio files, so media URLs you put in input count toward that total too.

Budget it

Pick the shots

A bundle with eight items does not need 30 photos. One clean packshot per item, one group shot and one lifestyle frame is 10, and leaves headroom for URLs inside input. If you exceed the budget the API answers invalid_attachment before a run exists.

{
  "instruction": "Gift set reveal, 9:16, items appear one by one.",
  "attachments": [
    { "type": "input_image", "image_url": "https://cdn.example.com/set/box.jpg" },
    { "type": "input_image", "image_url": "https://cdn.example.com/set/candle.jpg" },
    { "type": "input_image", "image_url": "https://cdn.example.com/set/soap.jpg" }
  ],
  "input": { "set_name": "Winter ritual set", "price_usd": 48 }
}

Failure codes to expect

• attachment_not_found: an asset_id is unknown in this workspace.
• attachment_too_large (413): an image is over 30 MB, or the set is over 500 MB.
• attachment_fetch_failed (502): Sume could not fetch it; check the URL is public.