Amazon OpenSearchManaged retrieval engine for agentic AI, search, and analytics
vs
ChromaOpen-source search infrastructure for AI
Comparison · Vector Databases · weekly run Nov 2
Amazon OpenSearch vs Chroma
Which one do AI engines recommend, and how do they differ on price, fit and features?
The short answer
Chroma is the stronger AI pick in Vector Databases: it has a visibility score of 18.6 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
- You prefer a larger, established vendor (5,000+ employees)
Choose Chroma if…
- You want the brand AI engines rank higher (18.6 vs 0)
- You need a self-hosted or on-premises option
- You need SOC 2 Type II coverage
- Fast path from local notebook prototyping to serverless cloud production
AI visibility side by side
Latest weekly run · Nov 2
| Metric | Amazon OpenSearch | Chroma |
|---|---|---|
| Visibility score | 0% | 18.6% |
| Change vs last week | New | New |
| Rank in Vector Databases | #28 | #6 |
| Share of voice | 0% | 6.8% |
| Mentions this run | 0 | 32 |
| Positive in AI answers | — | 50% |
The stronger value in each row is marked with a ✓.
Visibility score trend
Weekly runs over the last 60 days
Amazon OpenSearch 0pp · Chroma 0pp over 0 weekly runs.
Engine by engine
Chroma leads on 3 of 3 engines
ChatGPT
AI Mode
Perplexity
Amazon OpenSearchChroma
Head to head in AI answers
0 engine answers name both brands
0Amazon OpenSearch ranked higher
0Chroma ranked higher
Features, pricing & fit
| Dimension | Amazon OpenSearch | Chroma |
|---|---|---|
| Pricing model | — | Usage-based |
| Entry price | — | Free; paid from $250 / mo |
| Free plan | — | Yes |
| Deployment | Fully managed clusters or the Serverless option | Open-source self-hosted, serverless managed Chroma Cloud, or Bring Your Own Cloud in the customer's VPC. |
| Compliance | HIPAA eligible, PCI DSS, SOC, ISO, FedRAMP, DoD CC SRG, CSA STAR, FIPS 140-2, ISO 27017 | SOC 2 Type II |
| Support | — | Community support through Discord and the open-source community on the Starter plan, Slack support on the Team plan, Dedicated support and customized SLAs on the Enterprise plan |
| Founded | — | 2022 |
| Headquarters | Seattle, Washington | San Francisco, CA, United States |
| Employees | 5,000+ | 11–50 |
| Funding | — | Seed · $18M raised |
| Best for | — | Developers building retrieval-augmented generation prototypes, who get a fast start locally, and teams that later need a managed or self-hosted search system. |
Plans side by side
Amazon OpenSearch
Pricing not available.
Pros and cons
Themes from the AI answers that mention each brand
Amazon OpenSearch
Profile in progress.
Chroma
- Fast path from local notebook prototyping to serverless cloud production
- Free and open source when self-hosted
- Lightweight and developer-friendly for prototypes
- Best for local development, prototyping and MVPs
- Good for small-to-medium RAG and semantic search applications
- Not suited to high-scale production workloads
Data collected ·ChatGPT, Perplexity, Google AI Mode·coverage 100%·next run
Cite as: SlateIndex, “Amazon OpenSearch vs Chroma”, https://slateindex.ai/compare/amazon-opensearch-vs-chroma, data of Nov 2, 2026. Licence: CC BY 4.0.