Pinecone

Pinecone is a managed vector database, which means it stores embeddings and finds the most similar ones very quickly. It is commonly used for semantic search, recommendations and retrieval for AI assistants. Being serverless, it scales with your data and usage, and you don't manage any infrastructure. It supports metadata filtering, hybrid search and built-in embedding and reranking models. Pinecone has a free starter plan and usage-based paid tiers. It is one of the most recognized names in the space, and a common choice for teams that want it to just work.