# Vector Databases This section of the OpenAI Cookbook showcases many of the vector databases available to support your semantic search use cases. Vector databases can be a great accompaniment for knowledge retrieval applications, which reduce hallucinations by providing the LLM with the relevant context to answer questions. Each provider has their own named directory, with a standard notebook to introduce you to using our API with their product, and any supplementary notebooks they choose to add to showcase their functionality. ## Guides & deep dives - [AnalyticDB](https://www.alibabacloud.com/help/en/analyticdb-for-postgresql/latest/get-started-with-analyticdb-for-postgresql) - [Cassandra/Astra DB](https://docs.datastax.com/en/astra-serverless/docs/vector-search/qandasimsearch-quickstart.html) - [Azure AI Search](https://learn.microsoft.com/azure/search/search-get-started-vector) - [Chroma](https://docs.trychroma.com/getting-started) - [Elasticsearch](https://www.elastic.co/guide/en/elasticsearch/reference/current/knn-search.html) - [Hologres](https://www.alibabacloud.com/help/en/hologres/latest/procedure-to-use-hologres) - [Kusto](https://learn.microsoft.com/en-us/azure/data-explorer/web-query-data) - [Milvus](https://milvus.io/docs/example_code.md) - [MyScale](https://docs.myscale.com/en/quickstart/) - [MongoDB](https://www.mongodb.com/products/platform/atlas-vector-search) - [Neon Postgres](https://neon.tech/docs/ai/ai-intro) - [Pinecone](https://docs.pinecone.io/docs/quickstart) - [PolarDB](https://www.alibabacloud.com/help/en/polardb/latest/quick-start) - [Qdrant](https://qdrant.tech/documentation/quick-start/) - [Redis](https://github.com/RedisVentures/simple-vecsim-intro) - [SingleStoreDB](https://www.singlestore.com/blog/how-to-get-started-with-singlestore/) - [Supabase](https://supabase.com/docs/guides/ai) - [Tembo](https://tembo.io/docs/product/stacks/ai/vectordb) - [Typesense](https://typesense.org/docs/guide/) - [Vespa AI](https://vespa.ai/) - [Weaviate](https://weaviate.io/developers/weaviate/quickstart) - [Zilliz](https://docs.zilliz.com/docs/quick-start-1)