
RAGAS
Retrieval Augmented Generation Assessment framework for reference-free evaluation of RAG pipelines. RAGAS provides automated metrics for retrieval quality, context relevance, and generation faithfulness.
About this tool
Overview
RAGAS (Retrieval Augmented Generation Assessment) is a framework for evaluating RAG systems without requiring reference answers, using LLM-based judges for quality assessment.
Key Metrics
Retrieval Metrics:
- Context Precision: Relevance of retrieved chunks
- Context Recall: Coverage of relevant information
Generation Metrics:
- Faithfulness: LLM answers based on context
- Answer Relevance: Response addresses query
Reference-Free Evaluation
Unlike traditional metrics requiring ground truth:
- Uses LLMs as judges
- No need for labeled test data
- Evaluates both retrieval and generation
Use Cases
- Automated RAG quality monitoring
- A/B testing retrieval strategies
- Embedding model selection
- Chunking strategy optimization
Integration
Supports major frameworks:
- LangChain
- LlamaIndex
- Haystack
- Custom RAG pipelines
Availability
Open-source Python package
Paper: arXiv:2309.15217
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Information
Websitearxiv.org
PublishedMar 20, 2026
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