AI Fanfic Generator
This AI fanfic generator takes two characters and a trope, and gives you a premise, the thing that goes wrong, your first line and a tag set. Free, and it never asks you to sign up.
Your fanfic prompt
- The Long Way Round
- Two people who have spent a year being carefully, deliberately civil get assigned to the same three-week project. There is one desk. Neither of them mentions it. By day four they have worked out a rota nobody agreed to out loud.
- The thing that would fix it is the one thing neither of them is willing to say first, and they are both running out of reasons to stay in the room.
- There was one desk, and it had been one desk for four days, and neither of them had said a word about it.
- slow burn forced proximity workplace au mutual pining enemies to lovers no beta we die like men eventual romance
Now play it instead of writing it
Rabu AI turns a premise into a story you steer. You type what you do, and it answers.
Start a storyThen see if the chemistry is real: 20 free messages per day on an ad-supported free tier. No card required.
Popular characters on Rabu AI
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Marin 18
Kitagawa
Energetic and always up for an adventure, especially if it involves anime, manga, or finding the perfect cosplay materials!
Enthusiastic Nerd
Lena 21
Croix
Green hair, gray eyes, and a baker's touch. Here to knead you out and maybe steal a kiss or two.
Playful Flirt
Naomi 22
Owens
Looking for someone who appreciates both mosh pits and quiet nights under the stars.
Hot-Cold
Peach 23
Sweet, steady, and always hopeful. Looking for a partner who values kindness, laughter, and shared pastries!
Regal Petal
Risa 30
Fujita
I've got my life in order. If you're still playing games, you're not in my league. Don't waste my time.
Cold Bitter
Rena 25
Hamazaki
Keeping mouths fresh is my gig, but yours is the one I want to explore~
Playful Flirt
Kyouka 44
Tachibana
I have two grown daughters and getting back into the dating scene. Please be nice!
Nurturing Friend
Kanae 23
Mori
Serving looks and personality, what can I get you?
Famous Hidden
Ayako 41
Amano
Just trying to get myself back out there, new again to dating!
Doting Lady
Nami 20
Master navigator looking for someone to chart a course to adventure, and maybe help me count my treasures!
Fiery Shrewd
Haruka 27
Sato
Professional knowledge dispenser. Amateur cyclist who frequently gets lost.
Distant Kind
Mariya 37
Ayaka
Just curious about what's out there. Happy to chat and make new friends!
Always Agreeable
Miyu 20
Yamamoto
The only thing bigger than my boobs is my ego. Don't disappoint me.
Royal Brat
Ania 23
Zavello
I've got the energy to go five sets, and even more for a great date!
Happy Energetic
Ghislaine 40
Dedoldia
Deep sword swings, deeper loyalty. Want a mate for battle and beyond.
Beastly Swordswoman
Yuki 19
Ueda
Part-time gamer, full-time heart-stealer. Controller in one hand, your hand in the other?
Playful Flirt
Popular stories on Rabu AI
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What makes a fanfic prompt usable
A prompt is not an idea. An idea is "enemies to lovers". A prompt is the specific Tuesday on which two people who have been carefully polite for a year get handed one desk.
The difference is that one of them tells you where the first scene starts. That is why this tool gives you an opening line. A premise you cannot begin is a premise you will not write.
- Name the situation, not the feeling. "One desk" beats "tension".
- Give it a clock. Three weeks, one evening, six nights running.
- Make the problem specific. "He already knew" is a plot. "Miscommunication" is a tag.
- Start late. The good first line lands after something has already happened.
Using it for a fandom
Put the two names in the box. The prompt comes back shaped around them rather than around generic characters, and the tags come back in the style AO3 readers actually search.
Using it for original fiction
Leave the names out and describe the shape instead: "two rival chefs, slow burn, nobody says anything for 40k words". It will invent the people.