Lexical Search Python Packages

bm25s

Fast BM25 search in Python, powered by Numpy and Numba

flashrank

Lite & Super-fast re-ranking for your search & retrieval pipelines. Supports SoTA Listwise and Pairwise reranking based on LLMs and cross-encoders and more. Created by Prithivi Da, open for PRs & Collaborations.

bm25

Fast BM25 search in Python, powered by Numpy and Numba

laurus

Lexically Augmented Unified Retrieval Using Semantics

vyral

Portable contracts and local-first runtimes for canonical data, retrieval, durable execution, and agent-facing AI.

zeppelin-embed

Fastest and most accurate embeddable search library for MacOS / Apple Silicon

kfe

Cross-platform Search Engine and File Explorer for Multimedia

bm25-fusion

An ultra-fast BM25 retriever with support for multiple variants and meta-data filtering.

seekstorm-client-pure-py

seekstorm_client_pure_py

pronunciation-mapper

한국어 ASR 질의를 DB 용어로 안전하게 정규화하는 Foundry-first bounded agent. 로컬 발음 후보, Ollama 옵션, V1 호환.

vrraj-bm25s-retriever

Lexical routing layer for LLM tool selection. Filter MCP-discovered and registry tools before prompt assembly using fast BM25S retrieval.