Google Vertex AI Search vs OpenSearch
| Google Vertex AI Search | OpenSearch | |
|---|---|---|
| Free plan | No | Yes |
| Free trial | Yes | No |
| Paid from | $1.50/mo | Free |
| Open source | No | No |
| Platforms | Android, api, iOS, Web | api, Linux, macOS, self-hosted, Web, Windows |
| Free plan | No | — |
| Primary search mode | hybrid | — |
| Vector search | Yes | — |
| Faceted search | Yes | — |
| Deployment | cloud | — |
| Query interface | REST | — |
Both are listed in Best Search Databases. On Samsung Mobile US Press, OpenSearch scores higher on our published basis.