Outbrain (Native) — Native Video (Managed SmartAd)

Video · Native · Verified 2026-06

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1222×640
shown at 38%

In context

Sample feed post

Full specification

Size (px)
Ratio1.91:1
Max weight5 MB
FormatsMP4
Max duration15 seconds
Max video5 MB
Formats · VideoMP4
Text limits
Headline 30 chars
Description 300 chars
Company name 25 chars
CTA 25 chars

Notes & best practice

In-feed native video SmartAd.

MP4 format only.

Recommended ratios are 1.91:1, 4:3, 3:2, 1:1, and 1:1.91.

Rendered video size ranges from 500x262px to 1222x640px, with a maximum file size of 5 MB (approximately 15 seconds).

Brand logo must be JPG or PNG, 1:1 ratio, between 100x100px and 500x500px, up to 2 MB.

Served creatives must adhere to these limits despite larger DSP upload limits.

Frequently asked questions

What size is the Outbrain (Native) Native Video (Managed SmartAd)?
The Outbrain (Native) Native Video (Managed SmartAd) is 1222×640 px, aspect ratio 1.91:1.
What is the aspect ratio of the Outbrain (Native) Native Video (Managed SmartAd)?
1.91:1. At the recommended resolution that is 1222×640 px.
What is the maximum file size for the Outbrain (Native) Native Video (Managed SmartAd)?
Up to 5 MB, in MP4.
What file formats does Outbrain (Native) accept for the Native Video (Managed SmartAd)?
MP4.
How long can the Outbrain (Native) Native Video (Managed SmartAd) be?
15 seconds.
Why does Outbrain (Native) crop my Native Video (Managed SmartAd)?
Outbrain (Native) shows Native Video (Managed SmartAd) at 1.91:1. Upload exactly 1222×640 px and keep key content in the safe area so nothing gets cut off.
Is 1222×640 still correct for the Outbrain (Native) Native Video (Managed SmartAd) in 2026?
Yes. Last verified 2026-06 against the official Outbrain (Native) documentation.

Check your creative

Test a file against this exact spec before you upload it anywhere.

Nothing is uploaded or saved — the check runs entirely in your browser.

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