Pick any character reply in a conversation and branch a new timeline from it. The original keeps going; the fork explores what would have happened if you'd said the other thing.
Watson Amelia
Branch A
Branch B
Why branching
The best moments in a story are the ones where it could have gone either way. Branching means you don't have to choose.
— Reverie team
The timeline
A tree view of the whole conversation family — where each fork happened, and which timeline you're standing in.
A fork copies the conversation up to the reply you chose, then lives its own life: its own messages, its own summary, its own ending. Saved memories stay with the character, so what it learns in one branch it knows in all of them.
Open Timeline from a conversation's menu in your chat list to see the whole tree, with the branch you're in marked, and jump to any of them.
Forking copies the conversation state instead of rewriting it. Experiment as recklessly as you like — your main timeline doesn't move.
How to fork
Hover a character's reply on desktop, or tap it on a phone. Forking works from the character's messages, not your own.
Confirm with Fork Chat. The branch opens with everything up to that reply, titled after its parent.
Your chat list's menu → Timeline shows every branch as a tree. Rename, archive or delete branches like any other chat.
What you get
Regret-proof roleplay: every risky line, bold confession, and terrible decision can have its own timeline.
Not just the last reply: branch from the confession three days ago or the fight last week. Any character reply in the history is a valid starting line.
Fork the fork. Build a tree of timelines as wide and deep as your curiosity, with the timeline view keeping it all legible.
Story playthroughs branch too, so you can chase every route of an interactive story without replaying from the start.
Each branch is its own conversation, so you can switch the AI model before you reply and compare tellings. A branch keeps its parent's persona and scenario.
Forking itself costs nothing. A message in a branch costs what it would in the original, since the branch starts with the same context.
The branch tree is generated from your real conversation history — no manual bookmarks, no naming files like 'ending_final_v2'.
A sample of the library. Every conversation can branch.
Common questions
When trying the other path is free and the original is safe, you play differently — bolder lines, stranger choices, longer stories.
Instead of deleting a chat because one reply went sideways, fork from the message before it and keep both versions.
Because each branch is a full conversation, you can replay the same moment on a different AI model and see which telling you prefer.
Branches don't expire or overwrite each other. The romance route and the betrayal route can both exist, fully played out, side by side.
Forking is free and unlimited. The only credits spent are on the new messages you choose to write inside each timeline.
Choose the next step for your characters, conversations, or stories.
When you're ready
Branch the moment before the leap, and find out what both timelines look like.