Some networks hold only a short post. Rather than refusing a longer caption, Ocoya splits it into a thread — a chain of replies that reads as one piece of writing.
This happens automatically on X, Threads, Bluesky and Mastodon.
When a post becomes a thread
| Network | Fits in one post | Becomes a thread above |
|---|---|---|
| X (Twitter) | 280 characters | 280 |
| Threads | 500 characters | 500 |
| Bluesky | 300 characters | 300 |
| Mastodon | 500 characters | 500 |
Ocoya warns you while you’re writing, before you schedule anything:
Twitter caption exceeds 280 characters and will be split into a thread
That’s a warning, not an error — the post will publish.
The hard limit
Threading is not unlimited. Above 5,000 characters the post is refused outright and you’ll need to shorten it.
So on X there are three ranges:
- Up to 280 — one post
- 280 to 5,000 — a thread
- Above 5,000 — refused
Keeping it to one post
If you want a single post rather than a thread, shorten the caption until the warning disappears. Ocoya counts characters as you type.
Because you can write a different caption per channel, the usual approach is a short version for X and a longer one for Facebook or LinkedIn, in the same post.
Networks that don’t thread
Every other network either accepts the full caption or refuses it. Facebook takes 5,000 characters in one post, LinkedIn 3,000, Instagram 2,200 — exceed those and the post is refused rather than split. See Character and media limits.