Amazon OpenSearch vs Google Vertex AI Vector Search
Which one do AI engines recommend, and how do they differ on price, fit and features?
The short answer
Google Vertex AI Vector Search is the stronger AI pick in Vector Databases: it has a visibility score of 1.5 versus 0 for Amazon OpenSearch.
Choose Amazon OpenSearch if…
- You need HIPAA eligible or PCI DSS or SOC or ISO or FedRAMP or DoD CC SRG or CSA STAR or FIPS 140-2 or ISO 27017 coverage
Choose Google Vertex AI Vector Search if…
- You want the brand AI engines rank higher (1.5 vs 0)
AI visibility side by side
Latest weekly run · Nov 2
| Metric | Amazon OpenSearch | Google Vertex AI Vector Search |
|---|---|---|
| Visibility score | 0% | 1.5% |
| Change vs last week | New | New |
| Rank in Vector Databases | #28 | #21 |
| Share of voice | 0% | 0.5% |
| Mentions this run | 0 | 3 |
| Positive in AI answers | — | — |
The stronger value in each row is marked with a ✓.
Visibility score trend
Weekly runs over the last 60 days
Amazon OpenSearch 0pp · Google Vertex AI Vector Search 0pp over 0 weekly runs.
Engine by engine
Google Vertex AI Vector Search leads on 3 of 3 engines
Head to head in AI answers
0 engine answers name both brands
Features, pricing & fit
| Dimension | Amazon OpenSearch | Google Vertex AI Vector Search |
|---|---|---|
| Deployment | Fully managed clusters or the Serverless option | Fully managed service on Google Cloud |
| Compliance | HIPAA eligible, PCI DSS, SOC, ISO, FedRAMP, DoD CC SRG, CSA STAR, FIPS 140-2, ISO 27017 | — |
| Headquarters | Seattle, Washington | — |
| Employees | 5,000+ | 5,000+ |
Data collected ·ChatGPT, Perplexity, Google AI Mode·coverage 100%·next run
Cite as: SlateIndex, “Amazon OpenSearch vs Google Vertex AI Vector Search”, https://slateindex.ai/compare/amazon-opensearch-vs-google-vertex-ai-vector-search, data of Nov 2, 2026. Licence: CC BY 4.0.