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Specs and limits

Threads specs and limits

Threads text is limited to 500 characters, counted by code points. This page lists every text, media and posting rule 1Post checks for Threads: counts, sizes, lengths, threads and the daily cap. Where Threads publishes a figure on its own page we cite it with the date we read it.

Also:Schedule Threads postsSocial media posting limits by networkSocial media posting limits table

Updated 2026-10-23

What 1Post checks for Threads

RuleWhat 1Post checks
Text limit500 characters, counted by code points
Media acceptedImages, Video
Images per post20
Videos per post20
Image sizeUp to 8 MB
Image width320 to 1440 pixels
Video sizeUp to 1 GB
Video lengthAny to 5 minutes
Carousel2 to 20 items
ThreadsYes, as a chain of replies
First commentYes
Posts per day, per connected account (1Post)200

These are the limits 1Post applies in the composer, so a post that passes is not refused for them when it is sent. A network can still refuse a post for reasons outside these rules, such as its content policies.

What Threads publishes

FactSource
Text posts are limited to 500 characters, and emoji are counted by their number of UTF-8 bytes.Threads API: posts, read 2026-10-22
Images are JPEG or PNG up to 8 MB with an aspect ratio no wider than 10:1; widths are scaled into the range of 320 to 1440 pixels.Threads API: posts, read 2026-10-22
Videos are MOV or MP4 up to 5 minutes and 1 GB, at 23 to 60 frames per second, up to 1920 pixels wide.Threads API: posts, read 2026-10-22
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Questions

How is Threads text counted?

Threads text is counted by code points. The character counter applies the same rule.

Where do these Threads limits come from?

They are the limits 1Post checks before a post is sent. Figures the network publishes on its own page are cited above with the date read; the rest are checks 1Post sets.

How often is this page updated?

When a network changes a rule or we read a newer figure, the page changes with it. The date at the top shows the last change.

Sources

Free character counter for every social networkHow to set up a recurring post in 1Post1Post vs Publer: price, networks, API
Schedule Threads posts: formats, limits, setupSocial media posting limits by network, datedSocial media posting limits table, every network

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