Model reference · open weights

bge-small-en

Embeddings vectoriseai Embeddings 1 build Open weights 2k dl/mo

bge-small-en is an open-weight embedding model from vectoriseai. bge-small-en-v1.5 (BF16) weighs 134 MB; the smallest configuration that runs it is RTX 3060 12 GB.

For self-hosting, compare this build's requirements below with the GPU you plan to rent.

  • bge-small-en is a feature-extraction model developed by vectoriseai that maps English text to low-dimensional dense vectors.
  • It is designed for tasks such as retrieval, classification, clustering, and semantic search, and can be used in vector databases for LLMs.
  • The model supports a context length of 512 tokens and is released under the MIT licence.

Summary of the vectoriseai/bge-small-en-v1.5 model card, 2026-10-01

What it is

Released byvectoriseai
Released2023-10-09
VRAM134 MB for the weights

What it runs on

Memory and cards for bge-small-en-v1.5 (BF16)

134 MBweights, file size
1.1 GBruntime overhead
CardRunsMemory
RTX 3060 12 GBfits11.6 GB
RTX 4060 Ti 16 GBfits15.4 GB
RTX 3090 24 GBfits23.4 GB
RTX 4090 24 GBfits23.4 GB
RTX 5090 32 GBfits31.0 GB
L40S 48 GBfits44.0 GB
A100 80 GBfits78.2 GB
H100 80 GBfits78.1 GB
RTX PRO 6000 Blackwell 96 GBfits93.8 GB
DGX Spark (GB10) 128 GB unifiedfits107 GB
H200 141 GBfits138 GB
B200 180 GBfits176 GB

From the model card

What vectoriseai says about bge-small-en

Read the model card

More details please refer to our Github: FlagEmbedding.

English | 中文

FlagEmbedding can map any text to a low-dimensional dense vector which can be used for tasks like retrieval, classification, clustering, or semantic search. And it also can be used in vector databases for LLMs.

************* 🌟Updates🌟 *************

  • 09/15/2023: Release paper and dataset.
  • 09/12/2023: New Release:
    • New reranker model: release cross-encoder models BAAI/bge-reranker-base and BAAI/bge-reranker-large, which are more powerful than embedding model. We recommend to use/fine-tune them to re-rank top-k documents returned by embedding models.
    • update embedding model: release bge-*-v1.5 embedding model to alleviate the issue of the similarity distribution, and enhance its retrieval ability without instruction.
  • 09/07/2023: Update fine-tune code: Add script to mine hard negatives and support adding instruction during fine-tuning.
  • 08/09/2023: BGE Models are integrated into Langchain, you can use it like this; C-MTEB leaderboard is available.
  • 08/05/2023: Release base-scale and small-scale models, best performance among the models of the same size 🤗
  • 08/02/2023: Release bge-large-*(short for BAAI General Embedding) Models, rank 1st on MTEB and C-MTEB benchmark! :tada: :tada:
  • 08/01/2023: We release the Chinese Massive Text Embedding Benchmark (C-MTEB), consisting of 31 test dataset.

Model List

bge is short for BAAI general embedding.

ModelLanguageDescriptionquery instruction for retrieval*
BAAI/bge-reranker-largeChinese and EnglishInference Fine-tunea cross-encoder model which is more accurate but less efficient **
BAAI/bge-reranker-baseChinese and EnglishInference Fine-tunea cross-encoder model which is more accurate but less efficient **
BAAI/bge-large-en-v1.5EnglishInference Fine-tuneversion 1.5 with more reasonable similarity distributionRepresent this sentence for searching relevant passages:
BAAI/bge-base-en-v1.5EnglishInference Fine-tuneversion 1.5 with more reasonable similarity distributionRepresent this sentence for searching relevant passages:
BAAI/bge-small-en-v1.5EnglishInference Fine-tuneversion 1.5 with more reasonable similarity distributionRepresent this sentence for searching relevant passages:
BAAI/bge-large-zh-v1.5ChineseInference Fine-tuneversion 1.5 with more reasonable similarity distribution为这个句子生成表示以用于检索相关文章:
BAAI/bge-base-zh-v1.5ChineseInference Fine-tuneversion 1.5 with more reasonable similarity distribution为这个句子生成表示以用于检索相关文章:
BAAI/bge-small-zh-v1.5ChineseInference Fine-tuneversion 1.5 with more reasonable similarity distribution为这个句子生成表示以用于检索相关文章:
BAAI/bge-large-enEnglishInference Fine-tune:trophy: rank 1st in MTEB leaderboardRepresent this sentence for searching relevant passages:
BAAI/bge-base-enEnglishInference Fine-tunea base-scale model but with similar ability to bge-large-enRepresent this sentence for searching relevant passages:
BAAI/bge-small-enEnglishInference Fine-tunea small-scale model but with competitive performanceRepresent this sentence for searching relevant passages:
BAAI/bge-large-zhChineseInference Fine-tune:trophy: rank 1st in C-MTEB benchmark为这个句子生成表示以用于检索相关文章:
[BAAI/b

Quoted from the model card on Hugging Face. The full card is behind the Hugging Face link above.

Benchmarks

Reported results

As published on the model card: the maker's own numbers, not measured by AxForge.

TaskDatasetMetricScore
ClassificationMTEB AmazonCounterfactualClassification (en)accuracy73.791
ClassificationMTEB AmazonCounterfactualClassification (en)ap37.219
ClassificationMTEB AmazonCounterfactualClassification (en)f168.091
ClassificationMTEB AmazonPolarityClassificationaccuracy92.754
ClassificationMTEB AmazonPolarityClassificationap89.468
ClassificationMTEB AmazonPolarityClassificationf192.739
ClassificationMTEB AmazonReviewsClassification (en)accuracy46.986
ClassificationMTEB AmazonReviewsClassification (en)f146.559
RetrievalMTEB ArguAnamap_at_135.846
RetrievalMTEB ArguAnamap_at_1051.388
RetrievalMTEB ArguAnamap_at_10052.133
RetrievalMTEB ArguAnamap_at_100052.141
RetrievalMTEB ArguAnamap_at_347.037
RetrievalMTEB ArguAnamap_at_549.579
RetrievalMTEB ArguAnamrr_at_136.558
RetrievalMTEB ArguAnamrr_at_1051.658
RetrievalMTEB ArguAnamrr_at_10052.402
RetrievalMTEB ArguAnamrr_at_100052.410
RetrievalMTEB ArguAnamrr_at_347.345
RetrievalMTEB ArguAnamrr_at_549.798
RetrievalMTEB ArguAnandcg_at_135.846
RetrievalMTEB ArguAnandcg_at_1059.550
RetrievalMTEB ArguAnandcg_at_10062.596
RetrievalMTEB ArguAnandcg_at_100062.759
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