The Button That Rewrites Your Prompt, and When To Leave It Off
By The Fellowi Team · · 6 min read

Here is something most image generators do not tell you: almost none of them send your prompt to the model. They send a rewritten version. Your twelve words go to a language model first, come back as sixty, and those sixty are what the picture gets made from.
That has always happened here too. What changed this week is that it is now a switch you control, sitting just under the prompt box, off by default, marked +10 coins.
What a rewrite actually adds
Take a prompt with nothing in it: a woman in a red dress. Six words, and five of them are doing nothing. An image model has to decide the time of day, the room, the distance from the camera, the lens, whether the dress is silk or cotton, whether she is looking at you. It will decide all of that regardless. The only question is whether it decides from your words or from the statistical middle of everything it has ever seen.
A rewrite fills that space. It adds the vocabulary that image models are unusually responsive to: soft window light, shallow depth of field, the weight and texture of a fabric, where the subject is looking. None of it is magic. It is the same scaffolding described in our guide to writing prompts, written for you instead of by you.
Which is exactly why it can hurt
Now take the opposite case. You have spent twenty minutes on a prompt. You named the lens. You said the light comes from a window on the left, late afternoon, and that the fabric is heavy linen with visible weave. You specified that she is looking away from the camera.
A rewrite has a hard job with that prompt. It has to keep every constraint you set while adding its own, and the more you specified, the more there is to accidentally reword. The clause you cared about most is the one at risk, because it is often the unusual one, and unusual phrasing is what a rewrite smooths out. You do not get to see what it did. You just get a picture where the light is coming from somewhere else and no explanation why.
This is the real cost, and it is not the 10 coins. It is that you have added a variable you cannot inspect. When a render comes back wrong, you no longer know whether your prompt was wrong or the rewrite was.
The way we would use it
Treat it as a teacher rather than a setting.
When an idea is still one line in your head, turn it on. Spend the 10 coins, look at what comes back, and read the picture carefully: the rewrite has just shown you what a model thinks your sentence implies. Often that is the fastest way to discover that the phrase you thought was specific was not. Then take the parts you liked, write them into your own prompt in your own words, and turn the switch off.
From that point on you are tuning, and tuning wants one variable moving at a time. Keep the same seed of an idea, change one clause, render again at 40 coins, compare. That loop is slower to describe than to do, and it is the whole skill.
What it does not do
It does not make a refused prompt work. The rewrite deals in detail and structure, not permission, so the limits sit exactly where they did. It does not improve resolution either, which is the separate 60-coin choice between Standard and High. And it is not a quality setting in disguise: a rewritten bad idea is still a bad idea, rendered more confidently.
The honest summary is small. If you wrote a sentence, let it be rewritten. If you wrote a paragraph, you have already done the work, and paying to have it paraphrased is a strange way to spend a quarter more per picture.
Questions this post answers
What does enhance prompt actually change?
It hands your words to a language model that expands them into a fuller scene description before anything is rendered: lighting, framing, materials, the nouns an image model responds to. You never see that expanded version. Your picture is made from it rather than from what you typed.
Is it worth 10 coins?
On a short prompt, usually. On a long one, usually not. The surcharge sits on top of the 40 coins a standard image costs, so it is about a quarter more, and what it buys is scaffolding you did not write. If you already wrote the scaffolding, you are paying to have it rephrased.
Does a rewrite make explicit prompts work better?
No, and it does not loosen any limit either. The rewrite is about detail and structure, not permission. What is refused stays refused whichever way the toggle sits, and a rewrite of a vague adult prompt mostly adds lighting and setting, the same as anywhere else.
Should I just leave it on all the time?
We would not. While you are tuning a prompt you want one variable moving at a time, and a rewrite you cannot read is an invisible second variable. Leave it on while you are exploring, off once you start caring about the result.
Keep reading

Every Dial in the Studio, and Which Ones Actually Change the Result
Most of the settings do less than you think and two of them do far more. Here is the honest ranking, with what each costs.

Standard or High Quality? PNG or JPEG? A Fast Guide
Four settings, one minute to decide. Here's when each one actually matters.

AI Book Covers for Self-Published Authors: What to Generate and What to Leave to a Designer
The art can come from a prompt. The title, the spine and the genre signals still need a human eye. A practical split of the work for indie authors, with the rights spelled out.