AI Social Post Generator

Ceilings and comfortable lengths are different numbers. X allows 280 characters on a standard account and considerably more for paid subscribers; Threads sits around 500; an Instagram caption can run to roughly 2,200; LinkedIn allows about 3,000 in the body; Facebook's limit is high enough that it is never what constrains you. Platforms revise these, so treat them as a guide rather than a specification. In practice the fold matters more than the ceiling — whatever shows before the see-more truncation does the persuading, and everything after it is read mainly by people already convinced.

Fewer than most people use, and it varies by platform. On LinkedIn and X, around three, sitting at the end rather than stacked mid-sentence. On Instagram more is normal and up to 30 are permitted, though a wall of them reads as a bid for reach rather than as a caption. Hashtags earn their place when they name something people genuinely browse — an event, a conference, a working community — and do nothing at all when invented for one post. Putting them on their own line, or in the first comment on Instagram, keeps the copy readable. Deleting the ones that mean nothing to your audience costs you nothing.

You can, and it usually reads as though you did. The formats want different things: X rewards one compressed idea, LinkedIn an opening line followed by short paragraphs, Instagram a caption that only makes sense beside the picture, Threads something closer to conversation. A post carried across untouched shows the seams — hashtags meant for one place trailing under a paragraph written for another, line breaks that collapse in a different composer. Generating separately per platform from the same topic gets closer than reposting. The fact you are announcing travels; almost none of the framing around it does.

It leaves your browser. The topic, platform and variation count are combined into one instruction and posted to this site's own endpoint, which forwards it to an AI provider that writes the reply — and that provider's handling of it is theirs, not this page's. Nothing about the draft is kept here: it lives in the page's memory, a second run wipes the first, and closing the tab ends it. There is no account and no history to return to. Treat the box as public, so no unannounced dates, no client names, no figure that has not been published yet.

Because the brief was. Given nothing but 'we launched a new feature', a model has only the average of every launch post ever written to work from, and that average is precisely the register people scroll past — thrilled to announce, a rhetorical question, three hashtags. Specificity has to come from you: the number that surprised you, what went wrong first, who asked for it, what it replaced. One concrete detail in the brief produces a visibly different post. The other half is editing. Cut the opening sentence, which is usually throat-clearing, and the closing one, which is usually a slogan.

Platform policies generally target behaviour rather than authorship — automation, spam, deceptive accounts, undisclosed synthetic media of real people. Copy you briefed and then edited is not what those rules are aimed at, but terms differ by platform and are revised often, so check the current ones for the account you post from, particularly if it belongs to a client. Labelling requirements bite hardest around images and video of real people, not around text. Disclosure is more an audience question than a compliance one: on a personal account where the voice is the point, saying so costs little and being caught hiding it costs a lot.

Both are common, and the case for the comment is usually about reach, which nobody outside the platform can measure honestly. The practical reasons hold up better. A link in the post gets a preview card, which does some of the persuading but eats space you could have used for words. A link in the comment keeps the post clean and can be corrected later without touching the post, at the cost of a tap that some readers never make. Instagram does not make caption links clickable at all, so the profile link or a story is the route. Add any tracking parameters before you publish.

Five variations are five ways of saying one thing, which is not five days of content — posted in sequence they read as a stuck record. What does stretch a single announcement is changing the subject rather than the wording: the problem it solves, how the decision got made, what a customer said, a screenshot of it working, the version you decided not to build. Each of those is a separate brief and produces a genuinely different post. Variations are for choosing between before you publish, or for splicing — the opening line of one over the body of another.