LanceDB 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 5.7 for LanceDB, and ranks ahead in 100% of the answers that name both.
Choose LanceDB if…
- You need HIPAA or GDPR coverage
- Open-source, serverless vector database
- Embeds directly into applications and notebooks
- Free local install without cloud signup
Choose Weaviate if…
- You want the brand AI engines rank higher (45.2 vs 5.7)
- AI answers describe it more positively (59% vs 31% positive)
- You need HIPAA (Enterprise Cloud on AWS) coverage
- You prefer a larger, established vendor (51–200 employees)
AI visibility side by side
Latest weekly run · Nov 2
| Metric | LanceDB | Weaviate |
|---|---|---|
| Visibility score | 5.7% | 45.2% |
| Change vs last week | New | New |
| Rank in Vector Databases | #11 | #4 |
| Share of voice | 2.8% | 11.7% |
| Mentions this run | 13 | 56 |
| Positive in AI answers | 31% | 59% |
The stronger value in each row is marked with a ✓.
Visibility score trend
Weekly runs over the last 60 days
LanceDB 0pp · Weaviate 0pp over 0 weekly runs.
Engine by engine
Weaviate leads on 3 of 3 engines
Head to head in AI answers
12 engine answers name both brands
| Prompt | Engine | LanceDB | Weaviate |
|---|---|---|---|
| What are the best Vector Databases tools in 2026? | ChatGPT | #6 | #3 |
| What are the best Vector Databases tools in 2026? | Perplexity | #6 | #4 |
| Alternatives to the most popular vector database | ChatGPT | #6 | #3 |
| Alternatives to the most popular vector database | AI Mode | #9 | #5 |
| Alternatives to the most popular vector database | Perplexity | #9 | #3 |
| Best vector database with AI features | ChatGPT | #5 | #3 |
| Which Vector Databases tools offer annual discounts? | ChatGPT | #11 | #8 |
| Which Vector Databases tools offer annual discounts? | Perplexity | #7 | #1 |
| Official website of the top vector database vendors | ChatGPT | #11 | #2 |
| Official website of the top vector database vendors | AI Mode | #7 | #4 |
| Official website of the top vector database vendors | Perplexity | #5 | #3 |
| Where can I sign up for a vector database? | AI Mode | #11 | #3 |
Features, pricing & fit
| Dimension | LanceDB | Weaviate |
|---|---|---|
| Pricing model | — | Usage-based |
| Entry price | — | Free; paid from $45 / mo |
| Free plan | — | Yes |
| Deployment | Open-source edition embedded in the application; LanceDB Cloud serverless; Enterprise in the customer's own cloud. | Serverless, Enterprise Cloud, or Bring Your Own Cloud |
| Compliance | SOC 2 Type II, HIPAA, GDPR | SOC 2 Type II, HIPAA (Enterprise Cloud on AWS) |
| Support | Contact form, with a reply promised within 48 hours | 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 | 2022 | 2019 |
| Headquarters | San Francisco, California | Amsterdam, Netherlands |
| Employees | 11–50 | 51–200 |
| Funding | Series A | Strategic investment (Ricoh corporate venture fund) |
| Best for | Feature teams building production AI applications with vector search and multimodal data. | Development teams and enterprises building search, RAG and agent applications who want an open-source, production-ready vector database. |
Plans side by side
LanceDB
Pricing not available.
Weaviate
Pros and cons
Themes from the AI answers that mention each brand
LanceDB
- Open-source, serverless vector database
- Embeds directly into applications and notebooks
- Free local install without cloud signup
- Seamless embedded or lakehouse table use
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, “LanceDB vs Weaviate”, https://slateindex.ai/compare/lancedb-vs-weaviate, data of Nov 2, 2026. Licence: CC BY 4.0.