---
title: Multi-run
description: Run the same prompt across several models or sessions at once.
---

# Multi-run

Multi-run launches several sessions from one form — handy for trying the same task with different models and comparing the results. Open it from the button at the top of the session sidebar.

## Start a multi-run

1. Open the multi-run launcher.
2. Pick the project and name the run group.
3. Write the prompt and pick the models to run it with (up to five per group).
4. Choose whether to **isolate runs**.
5. Launch.

Each model gets its own session, and they all start with your prompt.

## Isolated runs

Turn on **isolate runs** to give every run its own [worktree](/worktrees/) and branch, so they never touch the same files. This needs a git repo — it's turned off automatically for folders that aren't one. Pick the branch the runs start from.

With isolation off, every run is a plain session in the project folder.

## Comparing results

Each run is a normal session you can open, read, and keep or discard. If you started runs to compare approaches, review them side by side and carry the best one forward.

If a single run fails to start, the others still launch — you'll just see fewer sessions than you asked for.

## Related

- [Worktree Sessions](/worktrees/) — how isolation works under the hood
