Terms
Last updated 6 September 2026. Dupe is an invite-only project run by one person, offered free while it is being built.
What Dupe is
Dupe reads a reference image and measures its style — colours from the actual pixels, plus a description of its medium, light and finish — and assembles a text prompt from what it measured. It can then send that prompt to an image generator. It is a tool for describing a look, not a service for copying anyone's work.
Your account
- Accounts are created by invitation. Your sign-in link is personal: anyone holding it can become you, so do not forward it.
- Each account has a monthly spending cap, because every generation costs real money paid by the person running Dupe. When you reach it the app says so and stops until the next month.
- Dupe as a whole also has a monthly ceiling, shared by everyone using it. It is possible to be stopped by that while your own cap still has room left — the app will say which one it is. Ask, and it can be raised.
- Deliberately working around the cap, the rate limits, or the sign-in — or using another person's link — ends the account.
What you upload
Only upload images you have the right to use. Dupe cannot tell whether a picture is yours, licensed to you, or taken from somewhere it should not have been. That judgement is yours and the responsibility stays with you.
Do not upload: material you have no rights to; images of identifiable people who have not agreed to it; anything sexual involving minors; or anything illegal where you are. Content falling into those categories is removed, and the account with it.
What you own
- Your uploads stay yours. Dupe claims no ownership of them and does not use them to train anything.
- What you generate is yours to use, as far as it is anyone's to give — the legal status of AI-generated images is unsettled in most places, and nothing here can promise you a copyright that the law may not grant.
- Your library is private and stays private. Nothing you make is shown on the public site. See Privacy.
- The styles Dupe provides — the ones on the front page and the ones seeded into your library — are measurements of a look, published by the person running Dupe. You are free to use them. They are not exclusive to you.
Generated images and other people's styles
A measured style is a description of a technique: palette, light, line weight, texture. Techniques are not owned. Particular characters, logos, trade dress and photographs of real people are a different matter, and prompting Dupe towards them can produce output you are not free to publish. Dupe does not police this for you.
What is not promised
- Dupe is offered as it is, with no warranty. It runs on one small server, maintained between other work.
- It may be slow, briefly down, or changed without notice. Features may be removed.
- Backups are taken nightly and verified, but keep your own copies of anything you would be upset to lose. No guarantee of recovery is offered.
- To the fullest extent the law allows, the person running Dupe is not liable for any loss arising from using it. Nothing here limits liability that cannot lawfully be limited.
Ending it
You can ask for your account and everything in it to be deleted at any time, and it will be. Access can also be withdrawn — this is a private invite list, not a public service — and if that happens without a breach of these terms, you will be offered your work first.