Actian Zen vs ArrowSpace
| Actian Zen | ArrowSpace | |
|---|---|---|
| Free plan | No | No |
| Free trial | No | No |
| Paid from | — | — |
| Open source | No | No |
| Platforms | Linux, Windows, macOS | — |
| Free plan | Yes | Yes |
| Paid from | 417 /mo | — |
| Deployment | both | self-hosted |
| Hybrid search | Yes | — |
| Metadata filtering | Yes | — |
| Index types | HNSW, flat | graph Laplacian; λτ spectral index; eigenmaps; energy maps |
| SDK languages | Python, JavaScript, C++ | Rust; Python |
Both are listed in Best Vector Databases. On Everything Xiaomi, Actian Zen scores higher on our published basis.