How to use it
- Describe what you want to talk about, the way you’d tell a friend who follows you. Include the detail that makes it yours.
- Add a topic tag if you want one. Threads allows one per post. A tag typed into a post ends at a space, so we join the words (“startup life” becomes #StartupLife) and drop the periods and ampersands Threads doesn’t accept.
- Pick an angle and a tone, then edit the post you’d actually say out loud.
Threads’ rules for posts
| What | Rule | Source |
|---|---|---|
| Post length | 500 characters | Threads API: posts |
| Topic tags | One per post, 1 to 50 characters, no periods (.) or ampersands (&) | Threads API: posts |
| Links | Up to 5 different links in a post | Threads API: posts |
Checked against each platform’s own help and developer pages in October 2026.
These come from Meta’s Threads developer docs, which describe what a post can contain. Every option here stays under 500 characters and carries one tag at most: extra tags at the end are removed, and a tag used as a word keeps the word.
Writing for Threads
- Talk, don’t announce. A post written like a press release reads like one. Write the sentence you’d say to someone across the table.
- Ask a question you want answered. “Weekly or every two weeks: which do you read?” gets replies. “Thoughts?” mostly doesn’t.
- One tag that names the topic, in the words people would look for it with.
- A link only when it’s the point. If the post stands on its own, it doesn’t need one. If it does, tag it with the UTM builder so you can see the visits it sends.
Honest limits
The model only knows what you type. It’s told not to invent numbers or stories, and options that likely do are dropped, but read each post before you use it: a post in your name should say only what’s true. Posting the same idea on X too? The X post generator writes to X’s weighted 280.