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mxbai-embed

A local text embedding model turns queries and documents into vectors for semantic search, with Apache 2.0 weights and adjustable embedding dimensions.

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mxbai-embed is Mixedbread's text embedding model family for developers building semantic search and retrieval systems. The downloadable mxbai-embed-large-v1 model converts queries and documents into vectors that applications can compare by meaning.

  • Semantic retrieval: Compare a query with document passages to find relevant text, including matches that use different wording.
  • Smaller embeddings: Reduce embedding dimensions with Matryoshka Representation Learning and compress vectors with binary quantization to lower storage and memory use; both approaches can work together.
  • Python and JavaScript support: Run the model with SentenceTransformers, Transformers or Transformers.js, or serve it through Infinity in Docker.

The mxbai-embed-large-v1 weights use the Apache 2.0 license. Local inference runs on your own hardware and doesn't require Mixedbread's hosted service. The model produces embeddings; your application still needs a way to store and search them.

Mixedbread also offers a separate managed search platform that processes and indexes uploaded files. Its Wholembed V3 model depends on the Silo storage engine and isn't available as a standalone download.

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