Caption
The text that goes with a photo or video post, which can add context, tell a story, ask a question or carry hashtags.
The picture stops the scroll; the caption decides what people do next. Networks only show the first line or two before "more", so the opening words carry most of the weight.
Caption limits vary: 2,200 characters on Instagram and TikTok, 500 on Threads, and 280 on X for standard accounts, with longer posts for Premium subscribers. Longer isn't better or worse in itself. It should be as long as the post needs.
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