Sydium for agencies
Your AI has one brand voice. Your client list has twelve.
Sydium trains a separate voice for every client, from that brand's own published posts. The skin clinic reads like the skin clinic. The gym still sounds like the gym.
Prove it on one client - paste their site or handle:
Reads your public posts only. The preview never publishes - and inside Sydium, nothing goes live without your OK.
First month doesn't sound like you? Voice retrained free, month refunded.
same news, two writers
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.
Prove it before you sign up.
Paste your posts or your website. If the sample doesn't sound like you, close the tab and keep your afternoon. No signup, no email.
Paste your website. We'll learn your voice.
Your writing DNA + 3 posts written as you. No signup needed.
No signup. No email. Just your URL.
“To do what Sydium does, I needed three things: a scheduler, a GPT I built myself, and an assistant to run them.”
A voice per client, not a tone slider
Each client's voice trains on their own published posts - up to 50 per platform - and keeps learning from every edit you make. Drafts arrive sounding like the client, so you edit lines, not pages.
Approvals out of your DMs
Every client gets their own portal: they see their calendar, approve their posts, and nothing ships without the sign-off you configured - full auto, batch review, or post-by-post.
One workspace per client, sealed
Connected accounts, calendar, analytics and permissions live inside each client's workspace, with zero bleed between them - the gym's meme cannot land on the law firm's LinkedIn. White-label it and every report carries your agency's name.
the pricing model
Per-seat pricing punishes hiring. Per-account pricing punishes winning.
The Agency plan is flat: $99/mo for up to 20 client workspaces and 10 team seats. Winning a client or hiring a manager does not move the bill.
14-day trial, card upfront, $0 today. Cancel before day 14 and pay nothing.
The long version, with the cost math against per-seat tools: read the full agency guide