Houston vs ZBrain
| Houston | ZBrain | |
|---|---|---|
| Free plan | Yes | No |
| Free trial | Yes | No |
| Paid from | $12/mo | — |
| Open source | No | No |
| Platforms | Linux, macOS, Web, Windows | Web |
| Free plan | Yes | No |
| Deployment model | — | both |
| Visual agent builder | — | Yes |
| Multi-agent support | — | Yes |
| Knowledge grounding | — | Yes |
| Voice agent support | — | Yes |
| Human handoff | — | Yes |
Both are listed in Best AI Agent Platforms. On Samsung Mobile US Press, Houston scores higher on our published basis.