Threads

Threads supports text-only posts, a single image or video, and carousels of 2-10 images. One optional setting attaches a topic tag.

Media Constraints

Constraint	Images	Videos
Formats	JPEG, PNG	MP4 (H.264 or HEVC + AAC)
Max file size	8 MB	1 GB
Max count per post	10	1
Max duration	n/a	5 minutes
Max resolution	1440px wide	1920x1080
Text-only	Supported	Supported
Mix images + video	Not allowed	Not allowed

Threads itself can mix images and videos in one carousel, but a Quegly post carries images or one video, never both, on every platform.

Platform Settings

Optional, under platform_settings.threads.

Field	Type	Values
topic_tag	string	1-50 characters, no periods, ampersands or spaces. A leading # is stripped.

Examples

Text-only post

{
  "type": "now",
  "caption": "Shipping the Threads integration today. Text posts, images, video and carousels from one calendar.",
  "account_ids": ["threads-account-id"]
}

Carousel with a topic tag

{
  "type": "schedule",
  "scheduled_at": "2026-10-01T14:00:00.000Z",
  "caption": "Three room makeovers, one afternoon.",
  "media_ids": ["image-id-1", "image-id-2", "image-id-3"],
  "account_ids": ["threads-account-id"],
  "platform_settings": {
    "threads": {
      "topic_tag": "interiordesign"
    }
  }
}

Caption Rules

Max length	500 characters. Hard limit; longer captions are rejected before the post is saved.
Links	Up to 5 unique URLs per post.

Threads counts emoji as multi-byte, so a caption near 500 characters with many emoji can still be refused by Threads. Keep emoji-heavy posts a little shorter, or give Threads its own caption with a per-platform override.