Library / SDK
Retrieval & Memory
FlashRank
1Fast, 2lightweight 3reranking 4for 5retrieval 6pipelines.
the six Ws · specification
W1
Who
By Prithivi Da.
W2
What
A tiny, fast reranker using cross-encoders and LLM-based listwise scoring.
W3
Where
A Python library in your pipeline.
W4
When
After first-stage retrieval, before generation.
W5
Why
Sharpens retrieval order with minimal footprint.
W6
With
Python and small ONNX models.
W7
Watch
Apache-2.0 open-source; runs locally, no credentials.
RerankingCross-encoderLightweight