Guide

AI posting, from the first draft to the last group

Most generators hand you text and stop at the hard part. This one writes the post, spins it into hundreds of versions, and then actually publishes it across your groups without making you look like a bot.

Updated 2 September 2026

Generating a post is half a feature

There are a hundred AI post generators and they all do the same thing: you describe a topic, you get paragraphs, you copy one out. Then you are back where you started, holding a post and facing the twenty places it has to go.

That second half is where the effort was all along. Twenty groups is twenty pastes, twenty photo uploads, and the near certainty that you will paste identical text by group eleven because you have stopped caring. Identical text across twenty groups is the cheapest spam signal there is, so the moment you get tired is the moment the campaign stops being shown.

Write with AI, in the composer

The writer sits in two places: the post editor on the dashboard, and the composer in the extension popup, so a post can be generated at the moment you are about to send one without switching context.

You give it as much or as little as you like.

What you can steer
InputEffectLeave it out if
TopicThe only required field. One line is plentyNever. This is the post
ToneCasual, direct, warm, plain. Defaults to casualThe default suits your groups
LengthShort, medium or long. Groups favour shortYou want the standard group length
AudienceWho it is written for, in your wordsYou are posting to one obvious crowd
LanguageWrites and spins in that languageYou post in English
ExamplesPosts of yours it should sound likeYou have no past posts handy
KindA post, or a first commentYou are writing the post itself

The examples field is the one people skip and the one that changes the most. Two of your own past posts teach it your register faster than any tone setting, because it can see how long your sentences run and how much you punctuate.

Spin what you already wrote

The other half of the writer is the one people use daily. Paste a post you already like, and it comes back with {a|b|c} groups woven in: same meaning, same facts, same length, now with alternatives at the natural variation points.

This is a better workflow than generating from scratch, and it is worth saying plainly. You know what your good post sounds like. Writing that post takes ten minutes. Writing the same post thirty different ways takes an afternoon and produces worse copy every time you do it. Spinning is exactly the tedious half, and it keeps your voice because your words are the input.

One post, hundreds of versions

Here is a real one, parsed by the same engine the extension posts with. The count below is what this line would actually produce.

{Morning|Hey|Hi} {everyone|all}, we still have {a couple of|two} {slots|spots} left {this week|before the weekend}. {Comment below|Send me a message} {and I will get you booked in|for the details}.

192 distinct posts, one of which is:

Morning everyone, we still have a couple of slots left this week. Comment below and I will get you booked in.

Every group in a run gets its own roll. Nothing repeats, nobody reads a thesaurus, and the campaign stops carrying the one signal that is cheapest for a platform to detect. The full syntax, including nesting and empty options, is in the spintax guide.

The posting half

Once the text exists, the extension publishes it. Not on a timer, and not in one burst, because both of those are patterns.

  • Randomised gaps. A few minutes between posts, drawn from a range you set. A fixed interval is a fingerprint, and a fast one is worse.
  • Different wording each time. The spintax rolls per post, so no two groups match.
  • Different photo each time. Media sets rotate, so the same image file is not stapled to forty posts.
  • Link in the first comment. Published clean, then the link follows a minute or two later.
  • Human motions. It dwells on the page, scrolls the feed, and types the post character by character in the real composer.
  • Active hours and bursts. A handful of posts, then a long break, and nothing at four in the morning.
  • It stops on a warning. Any block, checkpoint or rate notice halts the run and tells you.

It also survives a closed popup and a browser restart, because the run lives in storage rather than in memory. The walkthrough of a full run covers what that looks like from start to finish.

Making AI posts not sound like AI posts

Generated text is competent by default and invisible by default, which are the same problem. Four edits fix nearly all of it, and they take under a minute per post.

  1. Put a specific fact in the first line. A street name, a price, a number, a date. Specificity is the thing generated text is worst at and the thing that stops a scroll.
  2. Delete the last sentence. It is almost always a tidy summarising line that no person writes at the end of a group post.
  3. Break one sentence. Perfectly even sentence lengths read as machine-made. One short fragment fixes the rhythm.
  4. Cut the enthusiasm by half. Whatever register it chose, one notch down reads as a member of the group rather than as an advertiser in it.

The tells, and how to remove them

What gives generated posts away
TellWhat it looks likeThe fix
Em dashesSentences joined with a long dashBanned in the prompt, and worth checking anyway
TricolonsThree tidy clauses in a row, endlesslyDelete one of the three
The wrap-up lineA closing sentence restating the postCut it
Generic nounsSolutions, offerings, needsReplace with what you actually sell
Even rhythmEvery sentence the same lengthAdd a fragment
Brand voiceWe are excited to announceWrite as one person talking
Hashtag stacksFive hashtags on a group postDelete them, they do nothing in groups

The prompt handles most of these before you see the draft. The last two are worth checking by hand, because they are habits picked up from every marketing page ever written and they leak back in.

When to move up to the studio

The free writer is the right tool when you already know what to say and to whom. It is the wrong tool when you are guessing, because a generator writing about a topic you chose badly is a fast way to produce polished irrelevance.

The studio is for that second case. Instead of a topic, it takes a business, and it does the research.

Which one to use
SituationUseCost
You know the post you wantWrite with AIFree, unmetered
You have a post and want variantsSpin itFree, unmetered
You do not know who to write toThe studio, audiences firstOne audience unit each
You need images as well as textThe studio, full generationOne ad creative unit each
You need groups to post inThe group finder, off an audienceFree once the audience exists

AI Facebook ads covers the full generation pipeline, and AI audience research covers the targeting stage that decides who all this text is for.

What is free

Write with AI and the spinner are free on any signed-in account, with no monthly cap, because they are one cheap model call each. Posting is free too: 500 posts a month, every pacing control included, no card.

What the paid plans meter is the studio, where each ad involves real audience research and a real image render. Starter is $19 a month for 40 ad creatives and 15 audiences, Pro is $69 for 150 and 50, and both remove the posting cap entirely. A free account also gets a one-off credit of 20 creatives and 3 audiences so the studio can be tried properly rather than previewed.

Still stuck? Mail us and a person will answer.

AI post generation, answered

Is there a free AI social media post generator?

Write with AI is free on every signed-in account, including the free plan, and it is not metered. It is one cheap model call with a tight output, so it costs us little and gating it would be petty. The paid plans meter the heavier studio, which researches audiences and renders ad creatives.

Can AI write and post automatically?

Both, and Serious Poster does both, with a person in between. The AI writes the post and the spintax, you approve it, and the extension publishes it across your Facebook groups on a randomised schedule. Nothing is published without you pressing start, which is deliberate rather than a missing feature.

What is the difference between this and a scheduler?

A scheduler publishes the same text at a time you picked. This generates the text, produces hundreds of variants of it, draws a different image per post, spaces the posts unevenly across hours, holds a cooldown per group and stops on a warning. Posting identical text to twenty groups on a timer is the exact pattern that costs you reach.

Will people be able to tell the post was written by AI?

If you post the first draft unedited, some will. Generated text has habits: perfectly balanced sentences, a tidy summarising last line, and a register slightly brighter than anybody actually uses in a neighbourhood group. Cutting the last line and putting one specific detail in the first is usually enough to fix all of it.

How many post variations should I generate?

Three or four drafts, then keep one and spin it. Variation inside one good post beats four mediocre posts, because the spintax multiplies whatever you keep. A post with five choice points of three options each is already several hundred distinct versions.

Can it write the first comment as well?

Yes, and it should. The link belongs in the first comment rather than the post body, because posts carrying an outbound link are shown to fewer of a group. The writer produces comment text as its own kind, and the poster publishes it under your post after a randomised minute or two.

Does it write in languages other than English?

Yes. Set the language when you generate and it writes and spins in that language. The spintax syntax itself is language independent, since it is only braces and pipes around whatever words you give it.

Can I use it for other platforms?

The text is yours to paste anywhere. The posting half only publishes to Facebook groups, and the prompts are written for that room specifically: hook before the fold, no link in the body, member voice rather than brand voice. That tuning helps on most feeds and is essential on this one.

Write one post. Send five hundred.

The writer is free and unmetered. So is posting, up to 500 a month, with no card.