Amazon OpenSearch Service vs KDB.AI
| Amazon OpenSearch Service | KDB.AI | |
|---|---|---|
| Free plan | No | Yes |
| Free trial | No | Yes |
| Paid from | — | Free |
| Open source | No | No |
| Platforms | api, Web | api, self-hosted, Web |
| Free plan | — | Yes |
| Deployment | — | both |
| Hybrid search | — | Yes |
| Metadata filtering | — | Yes |
| Sparse vectors | — | Yes |
| Index types | — | Flat, qFlat, IVF, IVFPQ, HNSW, qHNSW, BM25 |
| SDK languages | — | Python, q |
Both are listed in Best Vector Database Hosting. On Inferse, KDB.AI scores higher on our published basis.