Amazon S3 Vectors 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 1.2 for Amazon S3 Vectors, and ranks ahead in 100% of the answers that name both.
Choose Amazon S3 Vectors if…
- very low storage cost for infrequently queried data
Choose Weaviate if…
- You want the brand AI engines rank higher (45.2 vs 1.2)
- 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 | Amazon S3 Vectors | Weaviate |
|---|---|---|
| Visibility score | 1.2% | 45.2% |
| Change vs last week | New | New |
| Rank in Vector Databases | #24 | #4 |
| Share of voice | 0.5% | 11.7% |
| Mentions this run | 2 | 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
Amazon S3 Vectors 0pp · Weaviate 0pp over 0 weekly runs.
Engine by engine
Weaviate leads on 3 of 3 engines
Head to head in AI answers
1 engine answers name both brands
| Prompt | Engine | Amazon S3 Vectors | Weaviate |
|---|---|---|---|
| What are the best Vector Databases tools in 2026? | Perplexity | #10 | #4 |
Features, pricing & fit
| Dimension | Amazon S3 Vectors | Weaviate |
|---|---|---|
| Pricing model | — | Usage-based |
| Entry price | — | Free; paid from $45 / mo |
| Free plan | — | Yes |
| Deployment | Fully managed and serverless, with no dedicated clusters to run | Serverless, Enterprise Cloud, or Bring Your Own Cloud |
| Compliance | — | SOC 2 Type II, HIPAA (Enterprise Cloud on AWS) |
| Support | — | 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 | 2025 | 2019 |
| Headquarters | — | Amsterdam, Netherlands |
| Employees | — | 51–200 |
| Funding | — | Strategic investment (Ricoh corporate venture fund) |
| Best for | — | Development teams and enterprises building search, RAG and agent applications who want an open-source, production-ready vector database. |
Plans side by side
Amazon S3 Vectors
Pricing not available.
Weaviate
Pros and cons
Themes from the AI answers that mention each brand
Amazon S3 Vectors
- very low storage cost for infrequently queried data
- higher latency
- fewer database-like capabilities
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, “Amazon S3 Vectors vs Weaviate”, https://slateindex.ai/compare/amazon-s3-vectors-vs-weaviate, data of Nov 2, 2026. Licence: CC BY 4.0.