tmux splits panes.
It doesn't know what an AI agent is.
tmux was built to keep SSH sessions alive and arrange panes on a screen. It has no concept of a branch, a git worktree, or an AI coding agent running inside one of its panes, because none of that existed when tmux was designed. NestMux is the multi-agent grid built for that reality.
A pane manager isn't a workflow
tmux solves layout: split the screen, keep sessions alive over SSH, detach and reattach. That's it. It has no idea that pane 3 is running Claude on a feature branch, that pane 5 is Codex on a hotfix, or that two of your panes are about to edit the same file.
Every branch, every agent, every worktree is something you script or remember yourself: tmuxinator configs, dotfiles, manual git worktree add. NestMux treats the branch and the agent as first-class objects: worktrees spawn native, AI panes broadcast together, and your team sees who's working on what without a screen-share.
NestMux vs tmux
The same tmux column already published on our pricing comparison, just NestMux and tmux, side by side.
| Feature | NestMux | tmux |
|---|---|---|
| Run Claude, Gemini, Codex, Copilot side by side | ||
| Broadcast one prompt to N panes | ||
| Native worktrees in UI | ||
| Per-branch isolated workspace | ||
| Built-in diff viewer | ||
| Custom CLI / MCP support | ||
| Real-time team chat | ||
| Live terminal sharing via 8-char code | ||
| GitHub + GitLab activity feed |
When tmux is still the right call
We're not going to pretend NestMux wins every case. Pick tmux when:
- › Do you need pure SSH session persistence? You just need a session on a remote server to survive a dropped connection. tmux does this in a few KB with zero setup.
- › Do you need an ultra-lightweight, scriptable setup? Headless boxes, CI runners, minimal containers. tmux is text-config, no GUI, no Electron process to install.
- › Are you working in a minimal-dependency environment? Locked-down servers where installing anything beyond what's in the base image is a fight you don't want to have.
- › Do you want full keyboard and config-file control? If you want every keybinding defined in a text file and zero GUI in your workflow, tmux's philosophy is exactly that.
If your work is mostly solo, remote-server sessions with no AI agents in the loop, tmux is still a great tool. NestMux exists for the workflow tmux was never built for: parallel AI agents, git worktrees, and a team that needs to see what's happening.
See it on your stack.
In 15 minutes.
Book a demo and we'll walk you through Nest with the AIs, repos and team you already use. Or grab the free build if you want to dive in first.