Running one coding agent is simple. You give it a task, watch the terminal, review the diff, and decide what happens next.
Running four agents at once is a different problem. The models are not the bottleneck anymore. Coordination is. You need to know who owns each task, which files are changing, what is blocked, and what is actually ready to merge.
I regularly rotate between Claude Code, Codex CLI, Antigravity CLI, OpenCode, and Kimi Code depending on the task. I rarely launch all five just because I can. The goal is useful parallelism, not maximum terminal count.
If you are choosing between terminal tabs, tmux, agent managers, and desktop workspaces, I wrote a practical comparison of the main multi-agent setups.
Disclosure: I build CodeAgentSwarm, so I have a clear point of view. The workflow below also works with plain terminals and git worktrees.
