Mastodon for small business: how to join, post and grow without ads
A plain-English guide to Mastodon for small businesses: choosing a server, setting up a profile, posting etiquette, hashtags and a simple weekly routine.
Networks
How to adapt AI-generated posts for LinkedIn, Instagram, TikTok, X, Threads and more: format, length, hooks and review steps each platform rewards.

To optimize AI-generated content for each platform's algorithm, start from one core idea and rewrite it for each network's format, length and audience instead of cross-posting the same text. Feed algorithms rank posts by how people respond, so each version needs a platform-native hook, the right length and media, and a human edit that adds specifics. Then measure each network on its own and feed the winners back into your prompts.
The rest of this guide covers why raw AI drafts fall flat, what each major platform rewards, and a repeatable workflow you can run every week.
AI is fast at producing a decent first draft. The trouble is that "decent" reads the same everywhere, and feeds are built to surface what people actually stop for.
Three patterns cause most of the drop-off:
The fix isn't to hide AI use. It's to treat the AI output as raw material and shape it for each place it will live.
Ranking systems change often and platforms don't publish full details, so focus on what is stable: format, length, and the kind of interaction each audience expects.
| Platform | Best-fit formats | Text length to plan for | What to adjust in AI drafts |
|---|---|---|---|
| Text posts, documents/carousels, native video | Up to 3,000 characters | Short paragraphs, a clear point of view, a real example from your work | |
| Reels, carousels, photos | Captions up to 2,200 characters | Visual first; caption supports the image, key line before the "more" cut | |
| TikTok | Short vertical video, photo posts | Short captions; the video carries the message | Script the first seconds, spoken tone, on-screen text |
| X | Short posts, threads, images | 280 characters on standard accounts | One idea per post; split longer drafts into a thread |
| Threads | Conversational text, images | 500 characters | Casual tone, a question or take that invites replies |
| Bluesky | Text, links, images | 300 characters | Tight wording; communities value straightforward, non-salesy posts |
| Mastodon | Text, images, content warnings | 500 by default (servers can change it) | Plain language, hashtags for discovery, alt text on images |
| YouTube | Long video and Shorts | Title and description | Searchable title, a description that explains the video |
| Pins with an image | Title and description | Keyword-rich description; the image does the selling |
For image and video dimensions, see our social media image and video sizes guide.
LinkedIn readers skim on mobile. AI tends to produce dense paragraphs, so break drafts into one- or two-sentence blocks and lead with the point, not the setup.
What lifts AI drafts here:
If you're unsure how often to publish there, our guide on how often to post on LinkedIn covers cadence.
These are visual-first feeds. The AI text matters less than the first frame and the first spoken line.
Our short-form video strategy guide goes deeper on pacing and formats.
Short-text networks reward clarity and timing.
Reddit isn't a scheduling-friendly network. Each subreddit has its own rules, many ban self-promotion, and members are quick to call out marketing copy. If you use AI there at all, use it for research and outlines, then write and engage in the comments yourself.
Use this workflow each time you plan a batch of posts.
Doing this by hand for nine networks gets tedious fast. Social9's AI Autopilot writes a separate version of each post for each connected network in your brand voice, and you choose how much control to keep: Drafts only, Approve first, or Full Autopilot. That keeps the adaptation step automatic while leaving the hook check and final edit with you.
Whatever tool you use, the principle is the same: one idea, many native versions, and a human who signs off before anything goes live.
Most major platforms say they rank content on how people respond to it, not on whether AI helped write it. What gets buried is generic, repetitive or misleading material, which unedited AI output often is. Some platforms do require labels on realistic AI images, video or audio. If you edit drafts so they are specific and useful, and label synthetic media where required, using AI is not a problem in itself.
You can, but it usually underperforms. Each network has different length limits, formats and audience expectations: a 3,000-character LinkedIn post will not fit on X or Bluesky, and Instagram needs a photo or video. A better approach is one core idea, then a separate version per network with its own hook, length and call to action.
Change the opening line first. The first sentence or first seconds of a video decide whether people keep reading or watching, and AI openers tend to be generic. After that, cut length to suit the platform, add one concrete detail only you know, and rewrite the call to action so it fits how people interact on that network.
Compare results per network rather than in aggregate. Track saves, shares, comments and click-throughs on each platform over several weeks, and note which hook styles and formats keep winning. Then update your prompts or brand voice settings so the next AI drafts start closer to what already works.

A plain-English guide to Mastodon for small businesses: choosing a server, setting up a profile, posting etiquette, hashtags and a simple weekly routine.

How small businesses can use Bluesky: setting up a trusted profile, what to post, how feeds and starter packs work, and a simple weekly routine you can keep.
Official image and video specs for Facebook, Instagram, Threads, LinkedIn, X, TikTok, YouTube, Pinterest, Google Business Profile, Bluesky and Mastodon.
Social9 schedules your posts on 11 networks, and Autopilot can draft them in your brand voice for you to approve. Start on the free plan.