DataStax Astra DB vs Zilliz Cloud
Which one do AI engines recommend, and how do they differ on price, fit and features?
The short answer
Zilliz Cloud is the stronger AI pick in Vector Databases: it has a visibility score of 23 versus 3 for DataStax Astra DB, and ranks ahead in 67% of the answers that name both.
Choose DataStax Astra DB if…
- You need a self-hosted or on-premises option
- You need HIPAA or PCI DSS or SOC 2 coverage
- You prefer a larger, established vendor (5,000+ employees)
- Integrated vector search in one serverless NoSQL database
Choose Zilliz Cloud if…
- You want the brand AI engines rank higher (23 vs 3)
- You need SOC 2 Type II or GDPR ready or HIPAA ready coverage
- built for billion-scale vector workloads
- free tier with 5 GB storage
AI visibility side by side
Latest weekly run · Nov 2
| Metric | DataStax Astra DB | Zilliz Cloud |
|---|---|---|
| Visibility score | 3% | 23% |
| Change vs last week | New | New |
| Rank in Vector Databases | #18 | #5 |
| Share of voice | 1.1% | 6.3% |
| Mentions this run | 5 | 30 |
| Positive in AI answers | — | 32% |
The stronger value in each row is marked with a ✓.
Visibility score trend
Weekly runs over the last 60 days
DataStax Astra DB 0pp · Zilliz Cloud 0pp over 0 weekly runs.
Engine by engine
Zilliz Cloud leads on 3 of 3 engines
Head to head in AI answers
3 engine answers name both brands
| Prompt | Engine | DataStax Astra DB | Zilliz Cloud |
|---|---|---|---|
| Which Vector Databases tools offer annual discounts? | ChatGPT | #1 | #2 |
| Which Vector Databases tools offer annual discounts? | AI Mode | #5 | #4 |
| Where can I sign up for a vector database? | AI Mode | #5 | #4 |
Features, pricing & fit
| Dimension | DataStax Astra DB | Zilliz Cloud |
|---|---|---|
| Pricing model | — | Usage-based |
| Entry price | — | Free; paid from $197 / mo |
| Free plan | — | Yes |
| Deployment | Cloud database-as-a-service; HCD for on-premises or private cloud | Fully managed SaaS, bring-your-own-cloud (BYOC) with data in the customer's VPC, and self-run open-source Milvus |
| Compliance | HIPAA, PCI DSS, SOC 2, ISO/IEC 27001 | SOC 2 Type II, ISO/IEC 27001, GDPR ready, HIPAA ready |
| Support | Documentation | Community support bot, Email/ticket portal, Slack private channel, Zoom, Google Meet or Teams calls |
| Founded | — | 2017 |
| Headquarters | — | Redwood City, California |
| Employees | 5,000+ | 51–200 |
| Funding | Undisclosed round (last round per Tracxn) | Series B extension · $113M raised |
| Best for | Enterprises building generative AI and retrieval-augmented generation applications that need scalable NoSQL storage with vector search. | Teams running production AI applications that need low-latency vector search at scale, and regulated sectors such as healthcare and finance |
Plans side by side
DataStax Astra DB
Pricing not available.
Zilliz Cloud
Pros and cons
Themes from the AI answers that mention each brand
DataStax Astra DB
- Integrated vector search in one serverless NoSQL database
- Annual commitment and volume discounts
- Built on Apache Cassandra
Zilliz Cloud
- built for billion-scale vector workloads
- free tier with 5 GB storage
- managed Milvus cloud option
- transparent pricing with pay-as-you-go options
- free trial with $100 in credits
- requires team able to support distributed infrastructure
Data collected ·ChatGPT, Perplexity, Google AI Mode·coverage 100%·next run
Cite as: SlateIndex, “DataStax Astra DB vs Zilliz Cloud”, https://slateindex.ai/compare/datastax-astra-db-vs-zilliz-cloud, data of Nov 2, 2026. Licence: CC BY 4.0.