Amazon OpenSearch Service vs Vespa
| Amazon OpenSearch Service | Vespa | |
|---|---|---|
| Free plan | No | No |
| Free trial | No | Yes |
| Paid from | — | $0.05/mo |
| Open source | No | No |
| Platforms | api, Web | api, Linux, macOS, self-hosted, Web, Windows |
| Free plan | — | No |
| Deployment | — | both |
| Hybrid search | — | Yes |
| Metadata filtering | — | Yes |
| Sparse vectors | — | Yes |
| Index types | — | HNSW |
| SDK languages | — | Python, Java |
Both are listed in Best Vector Database Hosting. On Inferse, Vespa scores higher on our published basis.