Voice is the sense, on the page, that a particular person — with a particular history, taste and temperament — chose these words. It's the most durable human signal in any text, and the first thing a model strips out when you ask it to "clean up" your essay.
What gets lost first
- Your preferred connectives. If you write "and so" twice a paragraph, a model will replace them with "therefore", "thus" and "consequently". The variety reads as professional and feels nothing like you.
- Your distinctive metaphors. The model reaches for the canonical one ("a double-edged sword") rather than the slightly odd one you would have written ("a knife with the handle on both ends").
- Your judgements. The half-sentence where you said the source was "frankly unconvincing" becomes "presents some limitations".
- Your sentence-level stutters. The mid-sentence "or rather" you use when you're correcting yourself, the dash you use when you're qualifying. The model smooths them.
Reading back for voice
Before you submit, read a passage from your essay alongside a paragraph you wrote a year ago in a different context — an old email, a journal entry, a comment on a friend's draft. If the new passage sounds like a different person wrote it, the model has overwritten your voice and you need to put some of it back.
Before
The author's central thesis is intriguing, although it presents some limitations. While the argument is compelling, certain aspects require further consideration. Overall, the work makes a meaningful contribution to the discourse.
After
The central thesis is interesting and almost convincing, and then he loses me in chapter four. The economic argument I follow; the cultural one feels like a different book pasted on top. Worth reading anyway for the chapters before the seams show.