amux vs Devin
Open-source agent fleet vs. proprietary autonomous engineer.
Considering amux? See it in action before deciding →
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Devin by Cognition is a proprietary autonomous AI software engineer with its own sandboxed environment. amux runs Claude Code agents on your own machine with full access to your codebase, tools, and environment.
Key differences
| Feature | amux | Devin |
|---|---|---|
| Hosting | Your machine (local-first) | Cloud sandbox |
| Agent count | Unlimited parallel sessions | One agent per task |
| Environment | Full access to your tools/env | Isolated sandbox |
| Cost | Pay per Claude API token | $500/mo subscription |
| Open source | Yes (MIT) | No |
| Self-healing | Auto-compact, restart, unstick | Proprietary recovery |
| Customization | Full control over session config | Limited configuration |
The trade-off
Devin offers a polished, fully-managed experience but at a high price point with limited customization. amux gives you full control over your agents, runs on your own infrastructure, and costs only what you pay for Claude API tokens.
See also
- Getting started with amux — running your first agent in 5 minutes
- Self-healing configuration — the watchdog that keeps agents running overnight
- Running agents overnight — unattended operation guide
- amux vs Claude Managed Agents
- amux vs OpenHands
Get started with amux
Run dozens of Claude Code agents in parallel. Python 3 + tmux. Open source.
git clone https://github.com/mixpeek/amux && cd amux && ./install.sh
amux register myproject --dir ~/Dev/myproject --yolo
amux start myproject
amux serve # → https://localhost:8822