Amazon OpenSearch vs DataStax Astra DB
Which one do AI engines recommend, and how do they differ on price, fit and features?
The short answer
DataStax Astra DB is the stronger AI pick in Vector Databases: it has a visibility score of 3 versus 0 for Amazon OpenSearch.
Choose Amazon OpenSearch if…
- You need HIPAA eligible or SOC or ISO or FedRAMP or DoD CC SRG or CSA STAR or FIPS 140-2 or ISO 27017 coverage
Choose DataStax Astra DB if…
- You want the brand AI engines rank higher (3 vs 0)
- You need a self-hosted or on-premises option
- You need HIPAA or SOC 2 or ISO/IEC 27001 coverage
- Integrated vector search in one serverless NoSQL database
AI visibility side by side
Latest weekly run · Nov 2
| Metric | Amazon OpenSearch | DataStax Astra DB |
|---|---|---|
| Visibility score | 0% | 3% |
| Change vs last week | New | New |
| Rank in Vector Databases | #28 | #18 |
| Share of voice | 0% | 1.1% |
| Mentions this run | 0 | 5 |
| 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 · DataStax Astra DB 0pp over 0 weekly runs.
Engine by engine
DataStax Astra DB leads on 3 of 3 engines
Head to head in AI answers
0 engine answers name both brands
Features, pricing & fit
| Dimension | Amazon OpenSearch | DataStax Astra DB |
|---|---|---|
| Deployment | Fully managed clusters or the Serverless option | Cloud database-as-a-service; HCD for on-premises or private cloud |
| Compliance | HIPAA eligible, PCI DSS, SOC, ISO, FedRAMP, DoD CC SRG, CSA STAR, FIPS 140-2, ISO 27017 | HIPAA, PCI DSS, SOC 2, ISO/IEC 27001 |
| Support | — | Documentation |
| Headquarters | Seattle, Washington | — |
| Employees | 5,000+ | 5,000+ |
| Funding | — | Undisclosed round (last round per Tracxn) |
| Best for | — | Enterprises building generative AI and retrieval-augmented generation applications that need scalable NoSQL storage with vector search. |
Pros and cons
Themes from the AI answers that mention each brand
Amazon OpenSearch
Profile in progress.
DataStax Astra DB
- Integrated vector search in one serverless NoSQL database
- Annual commitment and volume discounts
- Built on Apache Cassandra
Data collected ·ChatGPT, Perplexity, Google AI Mode·coverage 100%·next run
Cite as: SlateIndex, “Amazon OpenSearch vs DataStax Astra DB”, https://slateindex.ai/compare/amazon-opensearch-vs-datastax-astra-db, data of Nov 2, 2026. Licence: CC BY 4.0.