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Threads

Prepare and review your Threads posts.

Keep the conversation in view as you prepare a Threads version.

Review the sequence and context

Prepare the text and media for the selected format. Review the sequence before you schedule it.

Formats, limits and results

See the supported formats, text and media limits, required settings, platform-only features and available metrics below. These details come from the same capability data the editor uses.

Confirm the version you intend to share

A person confirms publishing by default. A workspace owner can explicitly enable auto-publish for a particular agent in a particular workspace.

Current access

Limited

Publishing needs Meta's app review. Until it passes, only people added as Threads testers can connect and publish.

Account types: profile

Formats and limits

Text post

A text post, optionally with a link card, a GIF or a topic tag.

Text
Required; 500 characters, with emoji counted as UTF-8 bytes maximum
Threads
Not supported for this format
Media per post
0 minimum; 0 maximum; none
Mixed images and video
Not supported
Alternative text
Not supported

Settings before publishing

  • Link card. A link to show as a preview card. Only on posts without images or video.
  • GIF. The id of a GIPHY GIF to attach (GIPHY is the only provider Threads supports). Only on posts without images or video.
  • Topic tag. An optional topic for the post, 1 to 50 characters, without periods or ampersands. Only on posts without images or video. Maximum 50 characters.

What stays in the platform app

  • Threads has no way to schedule a post ahead of time through its API. heyeveryone holds the post and publishes it at the chosen time.
  • The Threads API can attach a poll, but heyeveryone doesn't create polls yet. Add the poll in the Threads app.

Image post

A post with one image and optional text.

Text
Optional; 500 characters, with emoji counted as UTF-8 bytes maximum
Threads
Not supported for this format
Media per post
1 minimum; 1 maximum; image
Mixed images and video
Not supported
Alternative text
Supported; 1000 characters maximum

Image specifications

File types
image/jpeg, image/png
Maximum bytes
8388608
Aspect ratios
Minimum: 0.1; Maximum: 10; Suggested ratios: 1:10, 10:1

What stays in the platform app

  • Threads has no way to schedule a post ahead of time through its API. heyeveryone holds the post and publishes it at the chosen time.
  • The Threads API can attach a poll, but heyeveryone doesn't create polls yet. Add the poll in the Threads app.

Video post

A post with one video and optional text.

Text
Optional; 500 characters, with emoji counted as UTF-8 bytes maximum
Threads
Not supported for this format
Media per post
1 minimum; 1 maximum; video
Mixed images and video
Not supported
Alternative text
Supported; 1000 characters maximum

Video specifications

File types
video/mp4, video/quicktime
Video codecs
h264, hevc
Audio codecs
aac
Maximum bytes
1073741824
Minimum duration (ms)
Not documented
Maximum duration (ms)
300000
Maximum width (px)
1920
Maximum frames per second
60
Aspect ratios
Minimum: 0.01; Maximum: 10; Suggested ratios: 9:16

What stays in the platform app

  • Threads has no way to schedule a post ahead of time through its API. heyeveryone holds the post and publishes it at the chosen time.
  • The Threads API can attach a poll, but heyeveryone doesn't create polls yet. Add the poll in the Threads app.

Carousel

A swipeable post with 2 to 20 images or videos, mixed freely.

Text
Optional; 500 characters, with emoji counted as UTF-8 bytes maximum
Threads
Not supported for this format
Media per post
2 minimum; 20 maximum; image, video
Mixed images and video
Supported
Alternative text
Supported; 1000 characters maximum

Image specifications

File types
image/jpeg, image/png
Maximum bytes
8388608
Aspect ratios
Minimum: 0.1; Maximum: 10; Suggested ratios: 1:10, 10:1

Video specifications

File types
video/mp4, video/quicktime
Video codecs
h264, hevc
Audio codecs
aac
Maximum bytes
1073741824
Minimum duration (ms)
Not documented
Maximum duration (ms)
300000
Maximum width (px)
1920
Maximum frames per second
60
Aspect ratios
Minimum: 0.01; Maximum: 10; Suggested ratios: 9:16

What stays in the platform app

  • Threads has no way to schedule a post ahead of time through its API. heyeveryone holds the post and publishes it at the chosen time.
  • The Threads API can attach a poll, but heyeveryone doesn't create polls yet. Add the poll in the Threads app.

Thread

A chain of posts, each one a reply to the one before. Each post has text, one image or one video.

Text
Optional; 500 characters, with emoji counted as UTF-8 bytes maximum
Threads
Supported; undocumented maximum segments
Media per post
0 minimum; 1 maximum; image, video
Mixed images and video
Not supported
Alternative text
Supported; 1000 characters maximum

Image specifications

File types
image/jpeg, image/png
Maximum bytes
8388608
Aspect ratios
Minimum: 0.1; Maximum: 10; Suggested ratios: 1:10, 10:1

Video specifications

File types
video/mp4, video/quicktime
Video codecs
h264, hevc
Audio codecs
aac
Maximum bytes
1073741824
Minimum duration (ms)
Not documented
Maximum duration (ms)
300000
Maximum width (px)
1920
Maximum frames per second
60
Aspect ratios
Minimum: 0.01; Maximum: 10; Suggested ratios: 9:16

Settings before publishing

  • Link card. A link to show as a preview card. Only on posts without images or video.
  • GIF. The id of a GIPHY GIF to attach (GIPHY is the only provider Threads supports). Only on posts without images or video.
  • Topic tag. An optional topic for the post, 1 to 50 characters, without periods or ampersands. Only on posts without images or video. Maximum 50 characters.

What stays in the platform app

  • Threads has no way to schedule a post ahead of time through its API. heyeveryone holds the post and publishes it at the chosen time.
  • The Threads API can attach a poll, but heyeveryone doesn't create polls yet. Add the poll in the Threads app.

Results you can read

views, likes, comments, shares.

Availability varies by account and format. A missing number is not zero.

More to know

  • Threads allows 500 characters and counts each emoji by its UTF-8 bytes (most emoji count as 4, combined ones like families or flags as more); letters in any script count as one.
  • Images: JPEG or PNG, up to 8 MB, aspect ratio up to 10:1; widths outside 320-1440 px are scaled by Threads.
  • Video: MOV or MP4 (H.264 or HEVC, AAC audio), up to 1 GB and 5 minutes, up to 1920 px wide, 23-60 fps, aspect ratio 0.01:1 to 10:1 (9:16 recommended).
  • Alt text: up to 1,000 characters on each image and video, including carousel items.
  • Threads cannot receive uploaded files; it downloads media from a public link, so media must be hosted first.
  • A post can carry at most 5 different links, counting a link card (a post with more fails since 2025-12-22). Link cards, GIPHY GIFs and topic tags only work on text-only posts.
  • Topic tags are 1 to 50 characters and cannot contain periods (.) or ampersands (&).
  • A thread is a chain of replies: each post is published with reply_to_id set to the post before it, which needs the threads_manage_replies permission. A carousel cannot be a post in a thread.
  • Unused post containers expire after 24 hours, so heyeveryone creates them just before publishing. Threads recommends waiting about 30 seconds before publishing a container.
  • Publishing is not idempotent: Threads documents no way to repeat a publish safely, so an unconfirmed publish is never retried blindly.
  • No documented limit on thread length; per profile, Threads allows 250 posts, 1,000 replies and 100 deletions per rolling 24 hours.
  • Not offered yet: polls, quote posts, long text attachments (up to 10,000 characters) and spoilers, which the API now supports.

Sources

Questions and answers

Can I use every feature in the platform app?
No. Platform APIs expose only some features. The format guide identifies what you need to finish manually.