On-brand content

On-brand content is content that reads as authentically belonging to a brand: in the brand’s voice, aligned with its values, and recognisable as theirs without the logo attached.

On-brand is usually defined negatively — by what is off-brand. A post that uses banned cliches, breaks the typical sentence rhythm, takes a position the brand would never take, or reaches for vocabulary the brand never uses is off-brand even if it is competently written. On-brand is the absence of those tells, plus the presence of signature phrases, recognisable openers, and the brand’s typical structural moves.

Modern AI workflows make on-brand measurable rather than intuitive. A voice similarity score above a threshold (typically 75) is a reasonable operational definition; consistent breaches below that threshold mean the AI workflow is producing off-brand content that is being published anyway.

"On-brand" used to be a judgment call by whoever was reviewing the content. Measurement turns it into a checkpoint every piece passes through, which is the only way to scale content production without losing voice.