The best signal that an article was written by AI is a recognisable cadence: balanced sentences, three-item lists, "in conclusion". Five edits to your brand voice description fix most of it.

The five edits

  • Add a "do not say" list with: delve, leverage, in today's fast-paced world, navigate the complexities, robust.
  • Add a sentence-length variance rule: "vary sentences between 4 and 30 words; never three medium sentences in a row".
  • Provide two example sentences. One short and punchy, one with a clause.
  • Tell it to use specific numbers, not "many" or "several".
  • Tell it to use first person plural ("we") if your brand does, most generic copy hides behind passive voice.