DataStax Astra DB vs Weaviate
Which one do AI engines recommend, and how do they differ on price, fit and features?
The short answer
Weaviate is the stronger AI pick in Vector Databases: it has a visibility score of 45.2 versus 3 for DataStax Astra DB, and ranks ahead in 75% 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 or ISO/IEC 27001 coverage
- You prefer a larger, established vendor (5,000+ employees)
- Integrated vector search in one serverless NoSQL database
Choose Weaviate if…
- You want the brand AI engines rank higher (45.2 vs 3)
- You need SOC 2 Type II or HIPAA (Enterprise Cloud on AWS) coverage
- Strong native hybrid search
- Open-source and modular AI-native design
AI visibility side by side
Latest weekly run · Nov 2
| Metric | DataStax Astra DB | Weaviate |
|---|---|---|
| Visibility score | 3% | 45.2% |
| Change vs last week | New | New |
| Rank in Vector Databases | #18 | #4 |
| Share of voice | 1.1% | 11.7% |
| Mentions this run | 5 | 56 |
| Positive in AI answers | — | 59% |
The stronger value in each row is marked with a ✓.
Visibility score trend
Weekly runs over the last 60 days
DataStax Astra DB 0pp · Weaviate 0pp over 0 weekly runs.
Engine by engine
Weaviate leads on 3 of 3 engines
Head to head in AI answers
4 engine answers name both brands
| Prompt | Engine | DataStax Astra DB | Weaviate |
|---|---|---|---|
| Which Vector Databases vendors do analysts recommend? | Perplexity | #7 | #3 |
| Which Vector Databases tools offer annual discounts? | ChatGPT | #1 | #8 |
| Official website of the top vector database vendors | Perplexity | #10 | #3 |
| Where can I sign up for a vector database? | AI Mode | #5 | #3 |
Features, pricing & fit
| Dimension | DataStax Astra DB | Weaviate |
|---|---|---|
| Pricing model | — | Usage-based |
| Entry price | — | Free; paid from $45 / mo |
| Free plan | — | Yes |
| Deployment | Cloud database-as-a-service; HCD for on-premises or private cloud | Serverless, Enterprise Cloud, or Bring Your Own Cloud |
| Compliance | HIPAA, PCI DSS, SOC 2, ISO/IEC 27001 | SOC 2 Type II, HIPAA (Enterprise Cloud on AWS) |
| Support | Documentation | Email support on all plans, Phone and Slack support on Premium and Dedicated plans, Technical Account Team add-on on Premium and Dedicated plans |
| Founded | — | 2019 |
| Headquarters | — | Amsterdam, Netherlands |
| Employees | 5,000+ | 51–200 |
| Funding | Undisclosed round (last round per Tracxn) | Strategic investment (Ricoh corporate venture fund) |
| Best for | Enterprises building generative AI and retrieval-augmented generation applications that need scalable NoSQL storage with vector search. | Development teams and enterprises building search, RAG and agent applications who want an open-source, production-ready vector database. |
Plans side by side
DataStax Astra DB
Pricing not available.
Weaviate
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
Weaviate
- Strong native hybrid search
- Open-source and modular AI-native design
- Free tier or trial to start
- Flexible indexing and configurable managed service
- Published pricing with an annual-commitment option
- Monthly minimum charges
- Higher tiers priced steeply above entry plan
Data collected ·ChatGPT, Perplexity, Google AI Mode·coverage 100%·next run
Cite as: SlateIndex, “DataStax Astra DB vs Weaviate”, https://slateindex.ai/compare/datastax-astra-db-vs-weaviate, data of Nov 2, 2026. Licence: CC BY 4.0.