Ask a generative model to improve a paragraph and it will happily give you a new one. Cleaner, maybe. Smarter-sounding, often. Yours? Rarely. That gap between fixing and generating is small on the surface and enormous in practice.
Most of the writing we do all day is not a first draft from a blank page. It is an email that is almost right, a Slack reply that needs one word changed, a comment with a typo and an awkward clause. The text already exists. It already carries your intent. What it needs is a correction, not a replacement.
Generating throws away the original
When a tool generates, it treats your text as a prompt: raw material to be consumed and replaced. The output is a fresh composition that happens to be about the same thing. Sometimes that is exactly what you want. Usually it is not, because the new version quietly changes three things you did not ask it to touch:
- Your rhythm. The short, blunt sentence you wrote on purpose becomes a balanced, hedged one.
- Your vocabulary. Words you would never use ("leverage", "furthermore", "delve") slip in.
- Your intent. A direct request softens into a polite suggestion, and the ask gets lost.
You end up editing the edit, trying to claw your voice back out of something a model wrote. That is slower than fixing the original would have been, and it feels worse.
Fixing keeps the sentence you meant. Generating gives you a sentence someone else meant.
What "fixing" actually means
Fixing is the smallest change that removes an error. Spelling, grammar, a doubled word, a tense that slipped, a comma splice. The test is simple: if you read the before and after out loud, they should sound like the same person, on the same day, in the same mood.
A concrete before and after
Here is a real sentence, fixed rather than rewritten:
| Version | Text |
|---|---|
| Before | i wanted to discus the projet timeline before making a final descision. |
| Fixed | I wanted to discuss the project timeline before making a final decision. |
| Rewritten | I would love to connect regarding our project roadmap so we can align on next steps. |
The fixed version corrects four mistakes and changes nothing else. The rewritten version is grammatically perfect and no longer sounds like you at all. If you sent it to a colleague who knows you, they would notice.
When generating is the right call
None of this means generation is bad. It is the right tool when you genuinely have nothing yet: a blank page, a rough idea, a structure you cannot see. Drafting an outline, brainstorming angles, turning bullet points into a first pass. That is real, useful work.
The mistake is reaching for generation when you already have a draft. At that point you do not need more words. You need the ones you have to be correct.
A quick rule of thumb
- If the page is empty, generating can help you start.
- If the page has your words on it, fix them and move on.
- If you cannot tell the fixed version from your original at a glance, the fix was done right.
Why this is the whole idea behind Prose
Prose only fixes. You select text, right-click, and it returns the same text with the errors gone. No prompt box asking what you want changed, because the answer is always the same: fix it, keep my voice. The result stays editable, so you decide what to keep.
That constraint is deliberate. A tool that cannot rewrite cannot accidentally rewrite. Your sentence goes in, your sentence comes back, only correct. If you want to learn more about where that text travels, read where your text actually goes when AI fixes it.