Vespa vs Weaviate
Vespa: Big-data serving engine for search, recommendation and RAG with tensors and ML ranking. Weaviate: Open-source AI-native vector database with hybrid search, modules for embeddings and multi-tenancy.
key differences
- Vespa is primarily a search engine database; Weaviate is vector.
- Vespa is built for larger datasets (Multi-PB) than Weaviate (≤ 1 PB).
- Transactions: Vespa offers limited ACID; Weaviate offers none.
- Only Vespa has ttl / expiry, online schema changes, streaming ingest.
- Only Weaviate has role-based access.
choose vespa for
- +Large-scale hybrid search and RAG retrieval
- +Recommendation and personalization feeds
- +Ad serving and ranking
- +E-commerce search with learned ranking
best at · Search, Vector search, RAG
choose weaviate for
- +RAG over documents with hybrid retrieval
- +Multi-tenant SaaS semantic search
- +Product and content recommendation
- +Agent memory stores
best at · Vector search, RAG, Search
Vespa vs Weaviate: FAQ
What is the difference between Vespa and Weaviate?
Vespa: Big-data serving engine for search, recommendation and RAG with tensors and ML ranking. Weaviate: Open-source AI-native vector database with hybrid search, modules for embeddings and multi-tenancy. Vespa is primarily a search engine database; Weaviate is vector. Vespa is built for larger datasets (Multi-PB) than Weaviate (≤ 1 PB). Transactions: Vespa offers limited ACID; Weaviate offers none.
When should I choose Vespa over Weaviate?
Choose Vespa for large-scale hybrid search and RAG retrieval; recommendation and personalization feeds; and ad serving and ranking. Choose Weaviate for RAG over documents with hybrid retrieval; multi-tenant SaaS semantic search; and product and content recommendation.
Is Vespa or Weaviate more popular?
Weaviate ranks #65 on the WhichDB Score (33.4/100) and Vespa ranks #127 (23.8/100). Popularity is not fit: check the requirements that matter for your project.
Are Vespa and Weaviate open source?
Yes. Vespa is open source. License: Apache License 2.0. Yes. Weaviate is open source. License: BSD-3-Clause (core); enterprise features under the Weaviate License.