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For Geekout readers

The gym and the skin clinic should not sound like the same person.

Sydium trains a separate voice for every brand, on that brand’s own published posts. Eight brands, eight voices. You still own the account. It just stops being typing.

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same news, two writers

Instagram

thecornercafecoffee shop · tue 9:41

thecornercafe summer menu's on the board. cold brew tonic stays - you ordered 212 last month, we counted. the lavender latte didn't survive. new: fig toast. it will sell out.

what sydium writes, as you

thecornercafe 🚀 Exciting news, coffee lovers! ☕ We are THRILLED to announce our brand-new Summer Menu, crafted to elevate your coffee experience! Unparalleled flavors await. Don't miss out! ✨ #CoffeeLovers #SummerVibes #Blessed

what every other tool writes

drag the lime line left. then prove it on your own words.

Same engine, whatever the business.

There are no industry templates in here. Sydium reads what you already publish and writes the next post in that voice - which is why a skincare brand and a skate shop end up with nothing like the same words.

Instagram

Creators & coaches
setupnotes
A creator setting up a phone and ring light in a living room

setupnotes the boring three minutes that make the other forty easy

Shops & storefronts
northrowshop
A neon OPEN sign lighting a shopfront on a wet street

northrowshop new hours start monday. the sign will tell you before we do.

Beauty & skincare
smallbatchskin
An amber serum bottle on a stone slab in hard sunlight

smallbatchskin the bottle everyone asks about. no, it is not new.

Food & drink
fromthepass
A chef plating fresh pasta in a restaurant kitchen

fromthepass the special isn't on the menu. you have to ask.

Sport & fitness
chalkhours
A climber mid-move on an overhanging bouldering wall

chalkhours six weeks on one move. today it finally went.

Travel & experiences
sidestreets.co
Two glasses of wine on a rooftop terrace overlooking a hilltop town at sunset

sidestreets.co the table everyone asks how we found.

The objections you already have

Everything AI writes sounds like the same competent stranger.

Sydium trains a voice profile per brand, on that brand’s own published posts, not a generic model with a tone slider. Run eight brands and you get eight voices, because each one learned from different writing.

I already have a scheduler and a GPT I trained myself.

Then you have built a version of this already, with a gap where the person who runs it should be. The drafting tool does not know the brand, so you rewrite it. The scheduler does not know what you wrote, so you paste it. That paste is the job, and it is the part that stops scaling somewhere around the fourth account.

AI copy needs so much editing I may as well write it myself.

That is the correct reaction to most of these tools, and it is a training problem rather than a model problem. A voice built from what the brand actually published gives you a draft you adjust, not one you rewrite.

I am the one who gets blamed if it posts something off-brand.

Nothing publishes without approval unless you switch that off yourself. Approve a week at a time, or hand a client their own portal and let them approve their own.

What comes out the other end

One idea, three finished pieces. Vertical video with the captions burned in, a carousel written slide by slide, and a long post that sounds like you. Each one sized for where it lands.

A vertical video post with the captions burned in
0:24

the prep i do every sunday

Vertical video, captions burned in. One export that works as a Reel, a TikTok and a Short.
A carousel post showing a mango being sliced
1/3

three ways to cut it without losing half the fruit

Carousels, written slide by slide. A hook, the substance, then the ask - not one caption chopped in three.
draft

We went quiet for four months. Nothing broke. The phone just rang less, one week at a time. That is the part nobody warns you about: going quiet is never dramatic. It is gradual. We started again in March. One post a day, same shop, same work.

#smallbusiness #brasov

Long-form that sounds like you. Written from what you have already published, not from a prompt you had to invent.

The Geekout offer

30 days free instead of 14, then 50% off your first 2 months.

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Applied automatically through this page. There is no code to remember.

Pro $35/mo.
Agency $99/mo, up to 20 clients, white-label, analytics per client.

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From people who do this for a living

I train AI on brands for a living, so I am hard to impress: Sydium runs all my brands, and each one still sounds like itself.

Mirela Pascu, Founder, ThinkUP Marketing

To do what Sydium does, I needed three things: a scheduler, a GPT I built myself, and an assistant to run them.

Andreea Elena Halikias, Bestselling Author, Speaker & Entrepreneur

I open it, adjust a few lines, and it goes out. That’s the difference between posting when I have time and posting every week.

Alina Stoian, Marketing, Lux Divina

Found a missing feature. He shipped it the next day. I am no longer just a user, I am a supporter.

Marmotz, on X

What you actually get

  • Separate client workspaces, so nothing bleeds between accounts.
  • Client portals and approval workflows. They approve, you publish.
  • White-label, so the client sees your agency and not ours.
  • Analytics per client, without a second login.

What it will not do

  • It will not decide your strategy. It writes in a voice; it does not choose what the brand stands for.
  • It will not rescue an account with nothing to say. No photos and no news produces polished filler, and you will hate it.
  • It will not post behind your back. Approval is on by default and you turn it off deliberately.
  • It will not replace you. It replaces the retyping.

Try it on your most annoying client.

Not your easiest one. Point it at the account whose voice you have never quite been able to hand off, and see whether the first draft is one you would adjust or one you would bin. That is the only test that matters, and it takes about a minute.

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