TopK is described as 'It features native support for both vector search (vectors are simply another data type) and keyword search (BM25-style) in a single, unified system. With its powerful query expression language, TopK enables you to build reliable search applications (semantic search, RAG' and is an website in the online services category. There are three alternatives to TopK, not only websites but also apps for Self-Hosted, JavaScript, Node.JS and Windows. The best TopK alternative is Pinecone, which is both free and Open Source. Other great sites and apps similar to TopK are Zvec and vecr.io.
Fully-managed vector database providing lightning-fast, relevant search with developer-focused APIs, effortless scalability, metadata filters, transparent usage-based pricing, multi-cloud support, easy integration, unstructured data handling, and no need for infrastructure upkeep.
Zvec is an open-source, in-process vector database — lightweight, lightning-fast, and designed to embed directly into applications. Built on Proxima (Alibaba's battle-tested vector search engine), it delivers production-grade, low-latency, scalable similarity search with...
API-first search platform that enables developers to implement intelligent search capabilities without the complexity of managing ML infrastructure. Through its RESTful API, it automatically indexes and updates website content, leveraging vector databases and AI embeddings to...
United States
China
The description here is odd as Pinecone certainly isn't open source and falls behind in many ways compared to TopK.