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LanceDB: an embedded vector database for AI (open source)

LanceDB is a vector database that runs embedded in your app, no separate server, like a SQLite for vectors. An alternative to Pinecone for vector and multimodal search.

Published on May 15, 20264 min readView on GitHub

Cloud vector databases like Pinecone charge and require infrastructure. LanceDB flips that: it runs embedded in your application, no separate server, like a SQLite for vectors. It is a foundation for RAG and similarity search with no operating cost.

What is LanceDB?

Written in Rust and with SDKs for Python, TypeScript and Rust, LanceDB supports vector, full-text and hybrid search, with native support for multimodal data (vectors alongside images, text and metadata) via the fast columnar Lance format.

Key features

  • Runs embedded in the app, no server to operate
  • Vector, full-text and hybrid search
  • Native multimodal data support via the Lance format
  • SDKs in Python, TypeScript and Rust

How Reche uses it

Not every product needs a managed, expensive vector database. Reche picks the right architecture for each case, often an embedded solution like LanceDB, to deliver AI with lean cost and no vendor lock-in.

Want to implement this in your product?

Reche's initial diagnosis defines scope, timeline, and budget. Credited to the project if you move forward.