Teach it how you sound. Once.
Set the tone, the audience and the words you would never use. Everything the AI writes after that — captions, replies, ad copy, review responses — comes back sounding like you wrote it.
Free plan · No credit card required · Cancel any time
Brand Voice
Every caption written in your saved tone — automatically.
Works across every channel you publish to
0 min
To set up
Once per brand
0+
Surfaces it shapes
Captions to review replies
0
Source of truth
Not a prompt people retype
0p
Extra cost
Included on every plan
One voice, everywhere it matters
The same setting, seen through three of the things it shapes.
Tone, audience, and the words you refuse
Pick a tone, describe who you are talking to, and list what to avoid. That last part does more work than people expect — most off-brand copy is off-brand because of a word nobody said not to use.
Brand Voice
Every caption written in your saved tone — automatically.
Consistency is the thing AI usually breaks
Generic AI copy is not bad writing. It is writing that belongs to nobody.
A setting, not a prompt people retype
The alternative is everyone keeping their own paragraph of instructions in a notes app and pasting a slightly different version each time. That is how a brand ends up with four voices and nobody noticing until a customer does.
- Tone and voice notes stored on the brand, not the person
- New teammates inherit it without being briefed
- Refine it any time — every later generation picks the change up
Brand Voice
Every caption written in your saved tone — automatically.
The same personality across every surface
A brand that is warm on Instagram and stiff in its DMs has not got a voice, it has a caption style. The voice here carries into replies, ad copy, video scripts and review responses — the places customers actually judge you.
- Captions, hooks, hashtags and threads
- Comment and DM auto-replies, and review responses
- Ad copy and avatar-video scripts
Preview
mediux.ai
now
Your caption preview…
Fifty clients, fifty voices, no bleed
Each brand profile carries its own voice, scoped to its own workspace. The agency running a law firm and a skate brand out of the same login never has to worry about which one it is currently thinking in.
- A separate voice per brand profile
- Client workspaces cannot borrow each other's tone
- Pro covers 3 brands, Agency is unlimited
AI variations
✨ Big news drops today — you won't want to miss this 👀
Six months in the making. Here's why today's launch matters 👇
It's live. The wait is over. 🚀
One setting, every surface
Set the voice and none of these need telling separately.
Captions & hooks
The first line that decides whether anybody reads the second one — in your register, not a generic upbeat one.
Auto-replies
Twenty variations, one personality.
Review responses
Google Business replies that sound like the owner.
Ad copy
Paid creative that matches the organic feed it lands beside.
Video scripts
Avatar scripts written the way you would say it aloud.
Hashtag choice
Tags that fit the brand, not just the topic.
Repurposed posts
The same voice surviving the jump between formats.
Words you refuse
The jargon, the claims and the competitor names that must never appear — enforced everywhere at once.
Up and running in three steps
Step 01
Pick a tone
Friendly, confident, witty, straight down the line — or a combination. It is a starting point, not a cage.
Step 02
Describe the audience
Who you are talking to changes the register more than any adjective you could pick for yourself.
Step 03
List what to avoid
The jargon, the claims, the competitor names. This is the part that stops off-brand copy before it happens.
Sounding like yourself, at volume
The problem is not writing one good post. It is the fortieth one still sounding like the first.
The difference it actually makes
Without a saved voice
- Everyone keeping their own prompt in a notes app
- Copy that reads differently depending on who was on shift
- New teammates guessing the tone for their first month
- Generic AI cadence creeping in post by post
With brand voice set
- One stored voice every generation inherits
- The same personality in captions, replies and ads
- A teammate's first post sounding like your hundredth
- The words you refuse blocked everywhere at once
Generic AI copy is not badly written. It is writing that belongs to nobody.
Two minutes of setup is the difference between output you publish and output you rewrite.
Questions, answered
How long does it take to set up?
A couple of minutes per brand. You pick a tone, describe the audience, and add any words or phrases you always or never use. You can refine it later — the voice is a setting, not a one-off wizard you get one shot at.
Where does the brand voice apply?
Everywhere the AI writes: captions, hooks, hashtags, thread drafts, repurposed posts, comment and DM auto-replies, ad copy, video scripts and Google Business review responses. One setting, every surface.
Can different brands have different voices?
Yes, and they are kept strictly apart. Each brand profile carries its own tone and notes, so an agency running fifty clients keeps fifty distinct voices without anyone having to remember which is which. A client workspace never borrows another's tone.
Does my whole team share the same voice?
That is the point of storing it on the brand rather than the person. A teammate who joined this morning generates copy in the same voice as the founder who set it up, without being briefed.
Can I stop it using certain words?
Yes. The voice notes are where you put the things that matter most — the jargon you refuse, the competitor names you never mention, the claims your legal team will not sign off. It is as useful as a list of what to avoid as it is a description of how to sound.
Do I need a paid plan to use it?
No. Brand voice is available on every plan including Free — it shapes whatever generations your plan includes rather than being a separate paid feature.
Two minutes now. Every post after that.
Set your voice on the free plan and see the difference on your next ten generations.