Vellum vs ZBrain
| Vellum | ZBrain | |
|---|---|---|
| Free plan | Yes | No |
| Free trial | No | No |
| Paid from | $30/mo | — |
| Open source | No | No |
| Platforms | Android, extension, iOS, macOS, self-hosted, Web, Windows | Web |
| Free plan | Yes | No |
| Paid from | 30 /mo | — |
| 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, Vellum scores higher on our published basis.