Sydium for agencies
Your AI has one brand voice. Your client list does not.
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 up. cold brew tonic stays, the lavender latte didn't make it. new: fig toast, on sourdough, until the figs run out.
the same prompt, trained on this account
thecornercafe We're excited to announce our new summer menu! Come and try our refreshing Cold Brew Tonic, and don't miss our delicious new Fig Toast on sourdough. Perfect for those warm summer afternoons. We can't wait to see you!
the same prompt, no voice training
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.
“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.”
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. Per-client analytics and a shareable report come with the workspace - the report carries your client's name beside ours - and an existing queue comes in by CSV rather than by hand.
Approvals that do not need another login
Send a review link and your client approves, rejects or asks for a change from their email, with no Sydium account and no password. They can move the scheduled time from the same page. If they would rather have a portal, they get one: their calendar, their posts, their sign-off. Either way nothing ships without the approval you configured, and every decision is logged.
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. The portal your client logs into is yours: your logo, your colours, no mention of Sydium.
the pricing model
Per-seat pricing punishes hiring. Per-account pricing punishes winning.
The Agency plan is flat: $79/mo billed yearly, or $99 month to month/mo for up to 20 client workspaces and 10 team seats. Winning a client or hiring a manager does not move the bill. AI generation is the one metered thing, from a single monthly allowance shared across your clients, so heavy months are yours to spend where they matter.
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