TikTok AI disclaimer sits at the bottom: keep burned captions higher

TikTok shows an ad disclaimer at the bottom of the in-feed video for the whole duration of the ad, and it is added in Ads Manager rather than inside the creative. If your Sume captions burn into the lower third, they can collide with it. Move the caption line up with the placement.anchor_ratio design override, then check a render.

What TikTok says about the disclaimer

TikTok's Business Help Center describes a disclaimer toggle that adds a label to the bottom of in-feed ads instead of within the ad creative. Disclaimers are mandatory for AI-generated, synthetic or manipulated media, which includes images, video or audio that are completely AI-generated or real source material significantly modified by AI. The page was last updated September 2025.

Moving the caption line

Sume's standalone video captions accept a design object with a placement group: anchor_ratio and landscape_anchor_ratio, each described as the center of the line as a fraction of the frame height, and each bounded between 0.05 and 0.95 in the API. The docs do not state the direction of the scale, so render one test at 0.5 and read where the line lands before choosing a value.

Styles named slam, punch and tiktok-green do not support design overrides, so use a style that does, such as black-outline, for this adjustment. A caption job costs $0.20 for clips up to 60 seconds (Sume docs, read 2026-10-08).

{
  "video_url": "https://example.com/clean.mp4",
  "style": "black-outline",
  "design": {"placement": {"anchor_ratio": 0.5}}
}

Check with a still

Extract a still near the end of the ad with video frames, since the disclaimer stays for the whole ad but your last caption line is the likeliest to sit low. TikTok also publishes safe-zone files for in-feed ads in standard and anchor versions, linked from its spec page; use them as an overlay on the still.

Keep the legal text in TikTok's field. The disclaimer is the mechanism TikTok names for the AI label, so burning your own sentence into the caption does not replace the toggle.

A repeatable test for a batch

For a batch of ads, do not tune each file by eye. Pick one caption style that supports design overrides, render a single clip at a first anchor_ratio, extract a still with video frames, and look at where the line sits against the safe-zone overlay. Adjust once, then reuse the same value for the batch.

Re-check any clip whose caption wraps to two lines. A two-line caption is taller than a one-line caption, so a value that clears the bottom area for short lines can still reach it for long ones. Shorten the text or lower the font size rather than pushing the anchor to the edge of the allowed 0.05 to 0.95 range.

Each re-render of the same clip is another $0.20 caption job, so a few test renders on a short clip are cheaper than re-rendering a whole batch (Sume docs, read 2026-10-08).

What the Sume tools do not do

None of the Sume tools reads TikTok's disclaimer area or places a disclaimer for you. The disclaimer is set in TikTok Ads Manager, and Sume only controls where your own burned text lands. If you need to know the clip length, size or frame rate before uploading, run video inspect with frames set to false to get a probe without stills.