---
title: Fork a thread
type: how-to
section: ai-studio
summary: Select Fork on any message to start a new thread that holds the conversation up to that point, leaving the original untouched.
applies_to:
  clients: [web]
sources:
  - evolve-front-end/app/[lng]/studio/components/Full Conversation/ForkBtn.tsx
  - evolve-front-end/app/[lng]/studio/components/Full Conversation/MessageBubble.tsx
  - evolve-front-end/app/[lng]/studio/components/Full Conversation/StreamButton.tsx
  - evolve-front-end/app/i18n/locales/en/powerflow.json
verified:
  at: 2026-09-04
  env: code
  by: content-lane-ai-studio
ttl_days: 45
related: [ai-studio/move-around-a-long-thread, ai-studio/start-a-conversation, ai-studio/export-a-thread]
---

Select **Fork** on a message to start a new thread containing every message up to and including that one. The original thread is untouched.

Use it to try a different line of questioning without losing what you already have, or to carry on from someone else's thread that you cannot write in.

## Fork from a message

1. Open the thread from the **Threads** page.
2. Hover the message you want to branch from.
3. Select **Fork**.

AI Studio makes a new thread named after the original with `- Fork` appended, and opens it. Send your next message there.

The new thread stands on its own. Nothing you do in it changes the original, and the original shows no sign that it was forked.

## Threads you did not write

Opening someone else's thread gives a read-only view. The page explains it: you can fork from any message and continue in your own copy. Use **Fork**, then **Continue** in the new thread.

## If it did not work

- **Fork** is not on the message: open the thread from the **Threads** page rather than from the sidebar list.
- The fork stops short of where you wanted: fork from the later message. A fork keeps everything up to the message you chose, and nothing after it.
- The fork has no attachments: attachments are not carried into a forked thread. Attach them again. See [Attach files to a message](/help/ai-studio/attach-files-to-a-message).
- You cannot type in a thread and there is no **Continue** button: you are not its author. Fork it.