MarqoSmarter Search, Higher Conversion
vs
OpenSearchThe open engine for AI-powered search and observability
Comparison · Vector Databases · weekly run Nov 2
Marqo vs OpenSearch
Which one do AI engines recommend, and how do they differ on price, fit and features?
The short answer
OpenSearch is the stronger AI pick in Vector Databases: it has a visibility score of 3.9 versus 0.7 for Marqo.
Choose Marqo if…
No clear advantage in the published data.
Choose OpenSearch if…
- You want the brand AI engines rank higher (3.9 vs 0.7)
- Strong general database popularity
- Hybrid keyword-plus-semantic search with dense vectors
- Suited to broader search, logging, analytics, and observability
AI visibility side by side
Latest weekly run · Nov 2
| Metric | Marqo | OpenSearch |
|---|---|---|
| Visibility score | 0.7% | 3.9% |
| Change vs last week | New | New |
| Rank in Vector Databases | #25 | #16 |
| Share of voice | 0.4% | 1.7% |
| Mentions this run | 2 | 8 |
| Positive in AI answers | 0% | 0% |
The stronger value in each row is marked with a ✓.
Visibility score trend
Weekly runs over the last 60 days
Marqo 0pp · OpenSearch 0pp over 0 weekly runs.
Engine by engine
OpenSearch leads on 3 of 3 engines
ChatGPT
AI Mode
Perplexity
MarqoOpenSearch
Head to head in AI answers
0 engine answers name both brands
0Marqo ranked higher
0OpenSearch ranked higher
Features, pricing & fit
| Dimension | Marqo | OpenSearch |
|---|---|---|
| Deployment | Deployed via API or one-click integrations with commerce platforms | Self-managed, or through Amazon OpenSearch Service and managed providers such as Aiven and Instaclustr. A Kubernetes operator is available for managing clusters. |
| Support | Talk to a search expert, Book a 30-minute demo with a live proof-of-concept on your own catalog | Community forum, Slack, GitHub, Long-term support from certified providers |
| Founded | 2022 | 2021 |
| Headquarters | San Francisco, California, USA | San Francisco, CA, United States |
| Employees | 51–200 | 51–200 |
| Funding | Series A · $18M raised | — |
| Best for | Enterprise retail brands with large product catalogs in fashion, beauty, electronics and home goods | Organizations that want search, vector retrieval, and observability on open source software without vendor lock-in. |
Pros and cons
Themes from the AI answers that mention each brand
Marqo
Profile in progress.
OpenSearch
- Strong general database popularity
- Hybrid keyword-plus-semantic search with dense vectors
- Suited to broader search, logging, analytics, and observability
Data collected ·ChatGPT, Perplexity, Google AI Mode·coverage 100%·next run
Cite as: SlateIndex, “Marqo vs OpenSearch”, https://slateindex.ai/compare/marqo-vs-opensearch, data of Nov 2, 2026. Licence: CC BY 4.0.