FlashRank
Ultra-light reranking for better RAG
LLM / RAG frameworkRerankerApache-2.0Runs locallyPythonBeginner
🐳 Docker pulls
📦 PyPI downloads / month
📦 npm downloads / month
🚀 Latest release ·
What is FlashRank?
FlashRank re-ranks retrieved passages with tiny cross-encoder models, sharply improving RAG answer quality at almost no cost.
Why people choose FlashRank
- Big RAG quality gain for a few lines
- Tiny models, runs on CPU
- No API calls needed
FlashRank at a glance
| Category | LLM / RAG framework |
| Type | Reranker |
| License | Apache-2.0 |
| Runs locally | Yes |
| Built with | Python |
| Skill level | Beginner |
| Best for | anyone whose RAG returns mediocre passages |
Latest releases
Open-source alternatives to FlashRank
Other open-source llm / rag framework tools worth comparing:
LangChainCompose chains, tools and agents
LlamaIndexThe data framework for RAG
HaystackProduction pipelines for search and RAG
DSPyProgram — not prompt — language models
txtaiAll-in-one embeddings database
RAGFlowDeep-document-understanding RAG
Semantic KernelMicrosoft's enterprise agent frameworkGraphRAGRAG that builds a knowledge graph first
LiteLLMOne API for 100+ LLM providers
InstructorReliable structured outputs from LLMs
OutlinesGuarantee valid JSON and grammars
GuidanceInterleave control and generation
LLMWareEnterprise RAG with small specialised models
Sentence TransformersThe standard way to make embeddings
RagasMeasure whether your RAG is any good
PromptfooUnit tests for your prompts
LangfuseSee what your LLM app actually did
PhoenixTrace, evaluate and debug LLM appsFlashRank head-to-head
FlashRank vs LangChainFlashRank vs LlamaIndexFlashRank vs HaystackFlashRank vs DSPyFlashRank vs txtaiFlashRank vs RAGFlowFlashRank vs Semantic KernelFlashRank vs GraphRAGFlashRank vs LiteLLMFlashRank vs InstructorFlashRank vs OutlinesFlashRank vs GuidanceFlashRank vs LLMWareFlashRank vs Sentence TransformersFlashRank vs RagasFlashRank vs PromptfooFlashRank vs LangfuseFlashRank vs Phoenix
FAQ
Is FlashRank free?
FlashRank is free and open-source (Apache-2.0 license), so you can use, self-host and modify it at no cost.
Can I run FlashRank locally?
Yes. FlashRank is designed to run on your own machine or server, keeping your data private.
What is the best alternative to FlashRank?
Popular open-source alternatives include LangChain, LlamaIndex, Haystack. See the comparisons above to choose.
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