Sentence Transformers

Reimers & Gurevych's library for training sentence embeddings — substrate under most open-weight embedding models. Now under Hugging Face.

At a glance

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~15k★; SBERT paper has 5000+ citations.

Other embedding & reranker services in the catalog, ranked by inbound references.

Cohere Embed T1
Cohere's hosted embedding models (embed-v3 family) — multi-lingual, image+text, compression. Reranker API (Rerank-v3). Cohere is one of three major LLM startups (alongside Anthropic, OpenAI) by revenue scale.
BGE (BAAI) T2
BAAI (Beijing Academy of AI) BGE family — bge-large/base/small + bge-m3 multilingual + bge-reranker. One of the most widely-used open embedding families.
GTE (Alibaba-NLP) T3
Alibaba DAMO Academy's GTE family — open-weight multilingual embedding models; gte-large/base/small + Qwen-based gte-Qwen2.
Hugging Face Inference API (Embeddings) T1
HF's hosted Inference API and Inference Endpoints — serve any model from the Hub including the BGE/GTE/E5 embedding families.
Jina AI Embeddings T1
Jina AI's embedding family — jina-embeddings-v3 (multilingual), jina-clip-v2 (text+image), jina-colbert-v2. Open-weights + hosted API + ColBERT-style.
Mistral Embed T2
Mistral AI's hosted embedding API — mistral-embed; available via Mistral La Plateforme and Azure AI.