Voice is the underlying character people hear across channels, topics and formats: formal or conversational, warm or reserved, plain-spoken or technical, brisk or expansive. Voice should remain relatively stable even when the situation changes.
Tone is a different thing. It flexes according to audience, context and moment; voice is the through-line that makes the content still sound like the same organisation.
Why it matters for content
Take a message confirming that someone’s application has arrived. One organisation writes “Your application has been received. A response will be issued within five working days.” Another writes “Got it. We’ll be in touch within five working days.” The information is the same; the voice tells you who’s talking, and whether you’d want to talk back. Without a defined voice, organisations sound like a different person on every page, depending on who wrote the copy, which team owns it or whether the last draft came from legal, marketing or an AI assistant.
Voice needs pinning down once many people create content, once it spreads across several channels, or when the organisation wants to balance clarity with a distinctive point of view. It works best as a shared editorial reference that people check drafts against. Contentious describes its own as sassy, warm and wise, each with a “never” attached: sassy, never disrespectful; warm, never overbearing; wise, never superior. (The “nevers” do a lot of the work.)
How AI changes the picture
A model can infer stylistic patterns from examples, but examples alone can leave it copying surface habits or missing the boundaries. Written voice guidance, paired with examples of what works and what doesn’t, gives writers and systems a shared reference for producing and checking drafts.
Then there’s the temptation to accept fluency as a substitute. Generated drafts can be smooth, agreeable and slightly breathless, and a draft can be grammatically flawless while sounding like nobody in particular. Voice guidance gives editors a basis for rejecting polished copy that doesn’t sound like the organisation.
Questions people ask
- Can an organisation have one voice?
Not a rigid one. A charity’s letter from its chief executive and its cookie banner will never sound identical, but they can share recognisable characteristics: the same directness, the same refusal to hide behind jargon. Sub-brands and campaigns can stray further from the centre as long as the family resemblance holds.
- Is voice the same as tone?
They’re related but different. Voice is the underlying personality; tone is how that personality flexes for different situations. A warm voice stays warm in a complaint response, but the tone becomes calmer and plainer.
- Is voice just a branding extra?
No. Voice affects whether people trust what they read and how they interpret it. The same reassurance written in a stiff, legalistic register can read like a warning.
- Can AI write in our voice?
Up to a point. It works far better when the voice is defined with examples and usable guidance than when it’s left as a vague instruction such as “sound warm”. A few paragraphs you’re proud of, and a few you’d never publish, give it something to aim at.
Learn more
- Mailchimp voice and tone – a well-known example of defining character and then adapting it to context.
- Monzo writing principles – three principles, dialled up or down by channel, from operational messages to social posts.
- The three tenets of a content style guide – how voice sits alongside culture, editorial decisions and technical structure in a guide that people can use.