Guess the AI prompt, then prove it
Every AI image starts with a prompt. Can you work out what it was? Write your guess in 60 seconds, the AI makes your picture, and the closest one wins.
▶ Play freeHow it is different from other guess-the-prompt games
Most prompt guessing games want the exact hidden words. In Prompt Duel your guess becomes a new image, and you are scored on how close that image is to the target. You do not need the exact words, just a description that produces the same picture. Partly right still scores.
How the score works
The judge compares your picture with the target in two ways: does it show what the secret prompt describes (65%), and does it look similar (35%)? After each round you see the real secret prompt, so you learn which words you missed.
Tips for guessing AI image prompts
- Look for the style first: photo, 3D render, watercolor, pixel art. Style words are in almost every prompt.
- Name unusual details: "made of autumn leaves", "wearing a tiny hat".
- Mention the lighting and setting if they stand out.
- Keep it short. A clear 10-word guess beats a vague 40-word one.
Example round
“an owl made of orange autumn leaves sitting on a tree branch”
“a cute bird picture”
Questions
Do I have to guess the exact prompt?
No. Your guess is turned into a picture and scored on how close it is to the target, so a good description scores well even with different words.
Can I play against someone?
Yes. Play the bot instantly, or send a friend a challenge link for a 1v1.
Is there a new image every round?
Yes. Each round picks a new secret image from the game's library.