Developer: BAAI · Open-source reranker model
A Chinese and English cross-encoder that scores query-document pairs for reranking retrieved results.
No official API pricing published
Open-source model weights can be downloaded and self-hosted under their license. Hosting, compute and third-party API inference may incur separate charges. No verified, directly purchasable API quote is listed here.
- Model ID
- BAAI/bge-reranker-base
- Category
- Reranker
- Version
- Original release
- Languages
- en, zh
- Input length
- 512 tokens
- Embedding dimensions
- Not applicable — relevance score output
- License
- MIT
- Official announcement
- 2023-09-12
- Verified
- 2026-10-15
Maximum tokenized query-document pair length, including special tokens.
Use cases: RAG, reranking, retrieval, knowledge base.
Official sources and model revision
https://huggingface.co/BAAI/bge-reranker-base
https://huggingface.co/api/models/BAAI/bge-reranker-base
https://huggingface.co/BAAI/bge-reranker-base/raw/2cfc18c9415c912f9d8155881c133215df768a70/README.md
https://huggingface.co/BAAI/bge-reranker-base/raw/2cfc18c9415c912f9d8155881c133215df768a70/config.json
https://huggingface.co/BAAI/bge-reranker-base/raw/2cfc18c9415c912f9d8155881c133215df768a70/tokenizer_config.json
https://github.com/FlagOpen/FlagEmbedding
Revision: 2cfc18c9415c912f9d8155881c133215df768a70