Open source alternatives to Pinecone

2 projects on starwire do the same job. Ranked by how much of what Pinecone does each one covers, read from its README and website. Ties go to the most active.

What Pinecone does

Store and search vector embeddingscore
Fast similarity search at scalecore
Metadata filtering
Hybrid keyword and vector search
Managed serverless hosting
Built-in embedding and reranking

Each dot in the table is one job, in this order. Square dots are core jobs and count double. Full means yes, half means partly. "See the evidence" under a project shows the line behind each one. Coverage is what a project documents, not how well it works or how hard it is to move to. How we score this

Project	Covers	Stars	Commits, 12 weeks	Last release	Closed vs opened	Setup	License
qdrantHigh-performance vector database and similarity search engine written in Rust	Replaces it94%	36k+86	733	yesterday	100%	Hosted, free plan	Apache-2.0
Covers all 2 core jobs. Partly: Built-in embedding and reranking.See the evidence Store and search vector embeddingscoreYesstore, search, and manage points—vectors with an additional payload Fast similarity search at scalecoreYesScale horizontally with sharding and replication Metadata filteringYesAttach any JSON payload to your vectors and filter Hybrid keyword and vector searchYesBlend keyword and vector search in one query Managed serverless hostingYesfully managed Qdrant Cloud including a free tier Built-in embedding and rerankingPartlyFull-Spectrum Reranking
typesenseIn-memory search engine with typo tolerance, written in C++	Replaces it75%	27k+32	103	7 months ago	60%	Hosted version	GPL-3.0
Covers 1 of 2 core jobs. Partly: Fast similarity search at scale; Managed serverless hosting; Built-in embedding and reranking.See the evidence Store and search vector embeddingscoreYesVector Semantic Search Fast similarity search at scalecorePartlyLightning Fast, Open Source Search Metadata filteringYesEmpower users to slice and dice results by Attributes. Hybrid keyword and vector searchYesSemantic / Hybrid search on 300K HN comments Managed serverless hostingPartlyTypesense Cloud Built-in embedding and rerankingPartlyBuilt-in RAG

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