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View detailsWeaviate
An open-source vector database for storing embeddings and powering AI search and retrieval apps.
Weaviate is an open-source vector database built for AI applications. It stores embeddings alongside your data and supports semantic, keyword, and hybrid search, so applications can find content by meaning rather than by exact words.
Key Features
- Open-source vector database for AI applications
- Semantic, keyword, and hybrid search
- Built for retrieval-augmented generation (RAG)
- Free cloud tier with no credit card required
- Modules for embeddings and natural-language queries
- Replication and scaling for production use
Pricing
| Plan | Price | Details |
|---|---|---|
| Free | $0 | One cluster, 100,000 objects, 1 GB memory, 10 GB disk; no credit card required. |
| Flex | From $45/mo | Pay-as-you-go on shared infrastructure with a 99.5% SLA. |
| Premium | From $400/mo | Shared or dedicated deployment, 99.9% SLA, bring-your-own-cloud, HIPAA-eligible. |
Prices as listed in 2026 research. Always check the official site for the latest price — plans change. Free plan: Yes — it has a free plan.
Best for: developers building semantic search and RAG features into AI applications.
Popular with: Developers
Popular with: Developers
How it works
The database is designed for retrieval-augmented generation: your AI app queries Weaviate for the most relevant documents, then passes them to a language model for grounded answers. It includes modules for generating embeddings, a query agent for natural-language search, and replication for production reliability.
Weaviate is free to self-host, and Weaviate Cloud offers a free tier with no credit card required, with paid Flex plans starting from $45 per month and Premium from $400 per month. It is a solid foundation for any team building search or RAG features.
Pros and Cons
✓ Pros
- Free to self-host and free cloud tier
- Hybrid search combines meaning and keywords
- Purpose-built for AI retrieval workloads
- Active open-source community
✗ Cons
- Vector search concepts need learning
- Free tier is limited to 100,000 objects
- Premium plans start at $400 per month
Frequently Asked Questions
Is Weaviate free?
Yes — Weaviate has a free plan. Free tier; Flex from $45/mo; Premium from $400/mo
What is Weaviate best for?
developers building semantic search and RAG features into AI applications.
What kind of tool is Weaviate?
Weaviate is a Data & Analytics tool on VerlumoAI.
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View detailsLast reviewed: November 2026