Pyyan / Compare / Redis vs Weaviate
Redis vs Weaviate
2 of 5Vector Databases · verified 13 Aug 2026
RedisRediscurrent
WeaviateWeaviatecurrent| Specification | Redis | Weaviate |
|---|---|---|
| Summary | In-memory, so very fast and RAM-bound. | Hybrid search with batteries included. |
| Index | HNSW, FLAT | HNSW |
| Hybrid search | Yes | Yes, native |
| Hosting | Self-host and managed | Self-host and managed |
| Licence | RSALv2 / SSPL | BSD-3 |
| p50 latency | 5ms | ~12ms |
| Category | Vector Databases | Vector Databases |
| Official | Redis ↗ | Weaviate ↗ |
Highlighted rows are where these differ.
Redis
- Practical to roughly 10 to 100 million vectors
- You are paying for RAM, which sets the ceiling
Best for caches and hot vector sets.
Weaviate
- Vector, BM25 and metadata filters in one query
- Modules for embedding generation built in
Best for hybrid keyword and semantic search.