Compare code sandboxes
Cosmonic vs Runloop
Two code sandboxes tools for AI agents, side by side. Facts come from each tool's own site.
Cosmonic
cosmonic.comWebAssembly sandboxes for agent code, MCP servers and tools, with no access until you grant it: the free Cosmonic Desktop app (public beta) and Cosmonic Control for Kubernetes. Open source core: CNCF wasmCloud.
Visit Cosmonic
| Cosmonic | Runloop | |
|---|---|---|
| What it does | WebAssembly sandboxes for agent code, MCP servers and tools, with no access until you grant it: the free Cosmonic Desktop app (public beta) and Cosmonic Control for Kubernetes. Open source core: CNCF wasmCloud. | Code sandboxes (Devboxes) for AI coding agents, plus evaluations. |
| In their words | Cosmonic: Sandbox AI agents and tools | Runloop - Your AI Agent Accelerator |
| Open source | No | No |
| Website | cosmonic.com | runloop.ai |
| Link checked | 2026-10-20 | 2026-10-20 |
More options:Alternatives to CosmonicAlternatives to RunloopGuide: Best code sandboxes for AI agents
Keep comparing
