Voice supplement
How Sydium's Brand Voice AI ingests your existing work, builds a per-author profile, and ships posts your audience can't tell from your own.
How · Sample · Proof · Honest limits · Pricing
Most AI writing tools sound like ChatGPT. They write competent paragraphs that read identically across every brand and operator. Sydium does the opposite: instead of imposing a generic voice on you, it captures yours - cadence, vocabulary, sentence rhythm, the things you do not say - and writes inside that frame. Your audience does not notice the handover because there is nothing to notice.
“Your audience reads you because you sound like you. Sydium preserves that.”
Section II
Three inputs, one profile, thirty seconds. The model is built from your actual material, not a generic template.
Input
Drop a website link (we crawl your blog, your About page, your case studies) or paste 5-20 of your past posts. The more material, the sharper the voice.
Analysis
Sydium runs cadence analysis, vocabulary fingerprinting, sentence-rhythm detection, persona memory, and tonal anchors. The result is a vector profile that is yours.
Output
When Sydium writes a post for you, it generates inside your voice profile, not a generic LLM persona. Override anything, but most operators do not.
Section III
The same prompt, two outputs. The first is generic LLM English. The second runs through a voice profile we trained on a real founder's posts. Notice the difference in cadence, hedging, and how often each one resorts to a list.
Prompt
Write a LinkedIn post about why I shut down a feature most users wanted.
Generic AI
🚀 Today, we made the difficult decision to sunset our most-requested feature. Here's why: 1) It distracted from our core mission. 2) It served only 3% of our users. 3) Maintenance cost outweighed value. Sometimes saying no is the hardest yes. What unpopular decisions have you made recently? 👇
Sydium voice profile
I shut down the feature most users said they wanted. Three reasons. It only got real use from about 3% of accounts. The maintenance burden was eating two engineers. And honestly, the people who wanted it loud were not the people paying us. The customers who pay us wanted something else entirely. If you wait until everyone agrees to kill a thing, you never kill anything.
Section IV
Three operators describe what changed when their voice model could write like them.
“I run 20+ podcast client accounts. Each has its own voice profile. The AI gives me a starting point that already sounds like the client. I spend three minutes editing where I used to spend forty writing from scratch.”
“I do not waste hours figuring out what to post. Sydium drafts something that sounds like me, I adjust a sentence, publish. I post much more consistently now.”
Section V
We are not selling magic. Voice matching is a constrained tool that works well inside its constraints and badly outside them.
Sydium writes well in your voice once you give it a topic. It does not decide what your business should talk about. That is your job.
Voice matching preserves your style. It cannot fact-check or invent expertise you do not have. Treat draft outputs the way you would treat a junior writer's drafts.
If you paste two posts written six months apart, the voice profile is thin. The model sharpens with more material. Five to twenty posts gives a usable profile; thirty or more is excellent.
The voice model preserves how you write. It cannot preserve how you choose what to write about. You still have to be interesting.
The rates
save ~20%
Pro: $28/mo, billed yearly · $35 monthly
Agency: $79/mo, billed yearly · $99 monthly
Enterprise: $499/mo, billed yearly · custom terms
billed yearly · $35 monthly
300 AI-generated posts a month, 5 autopilot accounts, full voice training, and the whole trust ladder up to the keys.
Start with $0 todaybilled yearly · $99 monthly
800 AI-generated posts, 20 autopilot accounts, 10 seats, 20 client portals, approvals, white label.
Start with $0 todaybilled yearly · custom terms
50 autopilot accounts, unlimited automations, 50 seats, priority line to the founder.
Talk to DanFinal dispatch
Drop a URL, get two sample posts in your voice in thirty seconds. No signup, no card, no commitment.
Try the live demo