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BGE small v1.5

BGE small v1.5 is the lightweight English small model in the BGE v1.5 family released in Sep-2023. The BGE docs say the v1.5 line was introduced to enhance retrieval ability without instruction and to alleviate the similarity-distribution issue seen in earlier models. This variant is listed at 33.4M parameters and 133 MB, making it the most compact English v1.5 option for efficient embedding and retrieval workloads.
Text Gen 7
Released: September 12, 2023

Overview

BGE small v1.5 is BAAI’s smallest English BGE v1.5 embedding model. It keeps the compact small-model footprint while belonging to the Sep-2023 v1.5 update, which was introduced to improve retrieval without instruction tuning and to make similarity scores more reasonable.

About Beijing Academy of Artificial Intelligence (BAAI)

Beijing Academy of Artificial Intelligence (BAAI), also known as Zhiyuan Institute, is a Chinese non-profit AI research laboratory established in November 2018. BAAI conducts fundamental AI research, develops open-source models (including WuDao, BGE embeddings, Emu, and RoboBrain), and fosters collaboration between academia and industry. Known for creating the BGE (BAAI General Embedding) series of embedding models used in RAG systems worldwide.

Industry: Research
Company Size: 260
Location: Beijing, Beijing, CN
Website: baai.ac.cn
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Tools using BGE small v1.5

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Last updated: April 16, 2026
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