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MXBAI Embed Large v1

The Apache-2.0 efficiency champion — top MTEB scores from a 334M model, 1.9M downloads.

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About

MXBAI-Embed-Large-v1 (2024, Mixedbread AI) was the efficiency story of 2024 embeddings: top-tier MTEB scores from a 334M-parameter model — quality near the 7B LLM-embedders at a fraction of the compute. 1.9M Hugging Face downloads.

Apache 2.0 licensed — commercial use allowed. The size/quality tradeoff made it the default for cost-sensitive RAG in 2024-2025. A 2024 model in a 2026 field, but the efficiency argument holds: when you need good embeddings on modest hardware, 334M Apache-2.0 is still compelling. Mixedbread now offers newer models and an API; this checkpoint remains the open workhorse.

Specs

Context window

512 tokens

Pricing

Free — open weights (Apache 2.0), self-hosted. API via Mixedbread (paid).

Free quota

Free — download and run the weights yourself (Apache 2.0); runs on CPU.

API access

Self-hosted (sentence-transformers; Hugging Face checkpoints); Mixedbread API.

Weights

Open weights

Released

March 15, 2024

Benchmarks

Provider-claimed at release (2024): top MTEB for its size — treat as provider-claimed and dated. Independent: massive community validation (1.9M downloads).

Provider-reported unless a source says otherwise. Benchmarks are marketing-adjacent by nature — treat them as directional.

Use cases

ragsearchsemantic-searchprototyping

Trust score — 7/10

/10 trustMetrics-checked

Scored 7/10 (metrics tier). The 2024 efficiency champion: near-7B quality from 334M params, Apache 2.0, 1.9M downloads, and runs on CPU. Docked three points: (1) 512-token context is limiting for long documents; (2) 2024-era with newer alternatives; (3) Mixedbread's focus has shifted to newer models. The cost-sensitive RAG default.

How the trust score is built

Full methodology →
Adoption · stars/downloads, log-scaled vs peers
8.5/10
Maintenance · recency, releases, issue load
4.0/10
Openness · license + docs
9.4/10
Manual review · sanity read + red-flag check
8.0/10
  • · HF downloads 1,905,903 (peer-normalized)
  • · released 942 days ago
  • · manual review: 2024 efficiency champion; 334M, CPU-runnable; 512-token context limiting; license: Apache-2.0

Sources