AutoRAG
ModelFreeAutoRAG: An Open-Source Framework for Retrieval-Augmented Generation (RAG) Evaluation & Optimization with AutoML-Style Automation
Capabilities16 decomposed
yaml-driven rag pipeline configuration with multi-module trial orchestration
Medium confidenceAutoRAG uses a declarative YAML configuration system that defines a sequence of Node Lines, where each node contains multiple competing modules with different parameter combinations. The Evaluator class orchestrates trials by parsing the YAML config, instantiating all module variants, and systematically testing each combination against evaluation metrics. This enables AutoML-style hyperparameter search across the entire RAG pipeline without code changes.
Uses a declarative node-line architecture where each node can contain multiple competing modules with independent parameter grids, enabling systematic exploration of RAG pipeline configurations through YAML without code modification. The Evaluator orchestrates all trials and selects winners per node based on configurable strategies.
Faster than manual RAG tuning because it automates the trial-and-error process across all pipeline stages simultaneously; more flexible than fixed-pipeline tools because each node's best module is selected independently based on your metrics.
multi-stage rag pipeline evaluation with pluggable node types
Medium confidenceAutoRAG implements a modular node architecture where each stage of the RAG pipeline (query expansion, retrieval, reranking, filtering, augmentation, compression, prompt generation) is represented as a distinct Node type. Each node contains multiple module implementations that can be swapped and evaluated independently. The framework uses a NodeLine abstraction to chain these nodes sequentially, enabling evaluation of the full pipeline end-to-end while tracking which module combination produces the best results.
Implements a typed node architecture where each RAG pipeline stage (retrieval, reranking, filtering, etc.) is a distinct Node class with pluggable module implementations. Modules within a node are evaluated independently, and the best performer is selected per node, enabling fine-grained optimization of each pipeline stage.
More granular than monolithic RAG frameworks because each pipeline stage can be optimized independently; more structured than ad-hoc evaluation scripts because node types enforce consistent input/output contracts.
passage augmentation with context enrichment and metadata injection
Medium confidenceAutoRAG's PassageAugmenter node type enables testing of multiple augmentation strategies to enrich retrieved passages with additional context or metadata. Augmentation modules can add related passages, metadata, summaries, or external knowledge to each passage before generation. The framework evaluates which augmentation strategy improves answer quality or reduces hallucination, enabling optimization of context richness.
Treats passage augmentation as a pluggable node type with multiple competing strategies for enriching passages with context or metadata. Enables empirical evaluation of augmentation impact on answer quality without manual context engineering.
More flexible than fixed augmentation strategies because multiple approaches can be tested; more transparent than black-box augmentation because augmented passages are visible; enables context-quality trade-off analysis because both metrics are measured.
passage compression with extractive and abstractive summarization strategies
Medium confidenceAutoRAG's PassageCompressor node type enables testing of multiple compression strategies (extractive summarization, abstractive summarization, key-phrase extraction) to reduce passage length while preserving relevant information. Compression modules take passages and return compressed versions, reducing context length and latency while maintaining answer quality. The framework evaluates which compression strategy balances context preservation with efficiency.
Treats passage compression as a pluggable node type with multiple competing strategies (extractive, abstractive, key-phrase extraction). Enables empirical evaluation of compression impact on answer quality and latency without manual compression tuning.
More flexible than fixed compression ratios because multiple strategies can be tested; more transparent than black-box compression because compressed passages are visible; enables quality-efficiency trade-off analysis because both metrics are measured.
retrieval with multiple search strategies and vector database backends
Medium confidenceAutoRAG's Retrieval node type enables testing of multiple retrieval strategies (BM25, semantic search, hybrid retrieval, dense passage retrieval) as distinct modules. Each retrieval module queries the vector database or search index and returns ranked passages. The framework evaluates which retrieval strategy produces the best retrieval F1 or downstream answer quality, enabling optimization of the retrieval stage independent of other pipeline components.
Implements retrieval as a pluggable node type with multiple competing module implementations (BM25, semantic, hybrid, dense passage retrieval). Enables empirical evaluation of retrieval strategies and their impact on downstream answer quality without code changes.
More flexible than single-strategy retrieval because multiple strategies can be tested; more transparent than black-box retrieval because retrieved passages and scores are visible; enables strategy-selection based on empirical performance rather than assumptions.
end-to-end rag pipeline evaluation and trial orchestration
Medium confidenceAutoRAG's Evaluator class orchestrates the entire evaluation workflow: loading the YAML configuration, instantiating all module variants, ingesting the corpus into the vector database, executing trials (running each module combination through the full pipeline), computing metrics, and selecting the best module per node. The framework manages trial execution, result storage, and final pipeline selection, enabling fully automated RAG optimization without manual intervention.
Provides a unified Evaluator class that orchestrates the entire RAG optimization workflow: configuration parsing, module instantiation, corpus ingestion, trial execution, metric computation, and best-module selection. Enables fully automated RAG optimization without manual intervention or custom orchestration code.
More comprehensive than individual evaluation scripts because it handles the entire workflow; more automated than manual RAG tuning because all steps are orchestrated; more reproducible than ad-hoc evaluations because configuration and results are version-controlled.
api server deployment with rest endpoints for optimized rag pipelines
Medium confidenceAutoRAG provides an API server deployment option that exposes the optimized RAG pipeline as REST endpoints. After evaluation completes and the best pipeline is selected, users can deploy the pipeline as a web service with endpoints for querying. The API server handles request routing, passage retrieval, reranking, generation, and response formatting, enabling production deployment of optimized RAG systems.
Provides a built-in API server deployment option that exposes the optimized RAG pipeline as REST endpoints without additional code. Handles request routing, pipeline execution, and response formatting automatically.
Faster to deploy than building custom API wrappers because the server is built-in; more consistent than manual API implementation because the same pipeline logic is used; enables easy integration with external applications via standard HTTP.
web interface for interactive rag pipeline testing and visualization
Medium confidenceAutoRAG provides a web interface for interactive testing and visualization of RAG pipelines. Users can submit queries through the web UI, see retrieved passages, reranked results, and generated answers in real-time. The interface displays pipeline execution details (which modules were used, scores, latencies) and enables debugging of pipeline behavior without code or API calls.
Provides a built-in web interface for interactive RAG pipeline testing and visualization without additional code. Displays pipeline execution details and intermediate results for debugging and demonstration.
More accessible than API-based testing because non-technical users can interact with the pipeline; more transparent than black-box systems because intermediate results are visible; enables faster debugging because pipeline behavior is immediately visible.
synthetic qa dataset generation with llm-based question synthesis and filtering
Medium confidenceAutoRAG's Data Creation component generates synthetic question-answer pairs from raw documents using LLMs to synthesize questions and applying rule-based filters (e.g., dontknow_filter_rule_based) to remove low-quality pairs. The framework parses documents using pluggable parsers (langchain_parse, llamaparse), chunks them via chunkers (llama_index_chunk, langchain_chunk), and generates QA pairs with configurable LLM prompts. Filtering rules remove questions the LLM cannot answer reliably, producing a clean qa.parquet dataset with query-answer pairs and retrieval ground truth.
Combines LLM-based question synthesis with rule-based filtering (dontknow_filter_rule_based) to generate clean QA datasets from raw documents. Integrates pluggable parsers and chunkers, enabling end-to-end dataset creation from unstructured documents without manual annotation.
Faster than manual annotation because it automates QA pair generation; more flexible than fixed templates because it uses LLMs to generate natural, diverse questions; more reliable than raw synthetic data because filtering rules remove low-confidence pairs.
multi-metric rag evaluation with strategy-based module selection
Medium confidenceAutoRAG evaluates RAG pipeline modules using multiple metrics (retrieval_f1, bleu, rouge, sem_score, etc.) and selects the best module per node based on a configurable strategy (e.g., mean, weighted_sum, max). The Evaluator class computes metrics for each module variant, stores results, and applies the strategy to rank modules. This enables optimization toward different objectives (e.g., maximize retrieval accuracy vs. maximize answer quality) without re-running trials.
Decouples metric computation from module selection via a strategy abstraction. Computes multiple metrics per module variant and applies configurable strategies (mean, weighted_sum, max) to rank modules, enabling optimization toward different objectives without re-running trials.
More flexible than single-metric optimization because strategies can weight multiple metrics; more transparent than black-box selection because all metric scores are visible; faster than re-running trials because metrics are computed once and strategies are applied post-hoc.
vector database integration with pluggable embedding models and multi-backend support
Medium confidenceAutoRAG abstracts vector database operations through a configurable embedding and vector store layer. The framework supports multiple vector databases (Chroma, Weaviate, Pinecone, Milvus, etc.) and embedding models (OpenAI, Hugging Face, local models) via a unified interface. During evaluation, the Evaluator ingests the corpus into the configured vector DB using the specified embedding model, enabling retrieval modules to query the same indexed data across all trials.
Provides a unified abstraction over multiple vector databases and embedding models, allowing users to swap backends via configuration without code changes. Supports Chroma, Weaviate, Pinecone, Milvus, and others with pluggable embedding model integration (OpenAI, Hugging Face, local models).
More flexible than single-backend tools because it supports multiple vector databases; easier to switch backends than building custom adapters because configuration is declarative; enables fair comparison of embedding models because all use the same retrieval evaluation framework.
document parsing and intelligent chunking with multiple backend support
Medium confidenceAutoRAG's Data Creation component includes pluggable parsers (langchain_parse, llamaparse) that convert raw documents (PDF, HTML, Markdown) into structured text, and chunkers (llama_index_chunk, langchain_chunk) that split parsed content into semantically coherent passages. The framework handles document preprocessing, metadata extraction, and chunk size configuration, producing a corpus.parquet dataset with doc_id and contents columns ready for embedding and retrieval evaluation.
Integrates pluggable parsers (langchain_parse, llamaparse) and chunkers (llama_index_chunk, langchain_chunk) to handle end-to-end document preprocessing. Supports multiple document formats and chunking strategies, enabling users to optimize chunk size and overlap for their specific domain.
More flexible than fixed chunking because it supports multiple chunking strategies and configurable sizes; more robust than regex-based parsing because it uses dedicated parsing libraries; enables empirical chunk size optimization because AutoRAG can test multiple chunk sizes in a single evaluation run.
query expansion with multiple expansion strategies and module variants
Medium confidenceAutoRAG's QueryExpansion node type enables testing of multiple query expansion strategies (e.g., multi-query expansion, hypothetical document embeddings, query decomposition) as distinct modules. Each expansion module takes a user query and generates multiple related queries or reformulations, which are then passed to retrieval modules. The framework evaluates which expansion strategy (or no expansion) produces the best retrieval results, enabling data-driven decisions about query preprocessing.
Treats query expansion as a pluggable node type with multiple competing module implementations (MultiQueryExpansion, HyDE, QueryDecomposition, etc.). Enables empirical evaluation of whether expansion helps or hurts retrieval for your specific queries and domain.
More flexible than fixed expansion strategies because multiple strategies can be tested; more transparent than black-box expansion because expansion outputs are visible; enables cost-benefit analysis because latency and accuracy impacts are measured.
passage reranking with multiple ranking models and scoring strategies
Medium confidenceAutoRAG's PassageReranker node type enables testing of multiple reranking strategies (BM25-based, semantic similarity, LLM-based, learned ranking models) as distinct modules. Each reranker takes a list of retrieved passages and a query, scores them, and returns a reranked list. The framework evaluates which reranking strategy produces the best retrieval F1 or downstream answer quality, enabling optimization of the retrieval-to-generation pipeline.
Implements reranking as a pluggable node type with multiple competing module implementations (BM25, semantic, LLM-based, learned models). Enables empirical evaluation of reranking strategies and their impact on downstream answer quality without code changes.
More flexible than single-reranker pipelines because multiple strategies can be tested; more transparent than black-box reranking because scores are visible; enables latency-accuracy trade-off analysis because both metrics are measured.
passage filtering with rule-based and learned filtering strategies
Medium confidenceAutoRAG's PassageFilter node type enables testing of multiple filtering strategies (rule-based, similarity-based, LLM-based) to remove irrelevant or low-confidence passages before generation. Each filter module takes a list of passages and returns a filtered subset based on configurable criteria (e.g., similarity threshold, LLM confidence). The framework evaluates which filtering strategy reduces hallucination or improves answer quality without removing necessary context.
Treats passage filtering as a pluggable node type with multiple competing strategies (rule-based, similarity-based, LLM-based). Enables empirical evaluation of filtering impact on answer quality and hallucination reduction without manual threshold tuning.
More flexible than fixed filtering thresholds because multiple strategies can be tested; more transparent than black-box filtering because filter decisions are visible; enables hallucination-accuracy trade-off analysis because both metrics are measured.
prompt template optimization with llm-based generation and answer quality evaluation
Medium confidenceAutoRAG's PromptMaker and Generator nodes enable testing of multiple prompt templates and generation strategies. The PromptMaker node constructs prompts from passages and queries using configurable templates, and the Generator node sends prompts to LLMs and evaluates generated answers against ground truth. The framework measures answer quality using metrics (BLEU, ROUGE, semantic similarity) and selects the best prompt template or generation strategy, enabling optimization of the generation stage.
Decouples prompt template design from generation evaluation via pluggable PromptMaker and Generator modules. Enables systematic testing of multiple prompt templates and generation strategies, with automatic evaluation against ground truth answers.
More systematic than manual prompt engineering because multiple templates are tested automatically; more transparent than black-box generation because generated answers and metrics are visible; enables domain-specific optimization because templates can be customized per use case.
Capabilities are decomposed by AI analysis. Each maps to specific user intents and improves with match feedback.
Related Artifactssharing capabilities
Artifacts that share capabilities with AutoRAG, ranked by overlap. Discovered automatically through the match graph.
@rag-forge/shared
Internal shared utilities for RAG-Forge packages
FlashRAG
⚡FlashRAG: A Python Toolkit for Efficient RAG Research (WWW2025 Resource)
quivr
Opiniated RAG for integrating GenAI in your apps 🧠 Focus on your product rather than the RAG. Easy integration in existing products with customisation! Any LLM: GPT4, Groq, Llama. Any Vectorstore: PGVector, Faiss. Any Files. Anyway you want.
@kb-labs/mind-engine
Mind engine adapter for KB Labs Mind (RAG, embeddings, vector store integration).
LangChain RAG Template
LangChain reference RAG implementation from scratch.
@memberjunction/ai-vectordb
MemberJunction: AI Vector Database Module
Best For
- ✓ML engineers optimizing RAG systems for production
- ✓teams with domain-specific documents needing empirical pipeline tuning
- ✓researchers benchmarking RAG configurations across datasets
- ✓RAG practitioners experimenting with multi-stage pipeline architectures
- ✓teams needing to isolate which pipeline stage is the bottleneck
- ✓researchers studying the impact of individual RAG components on QA performance
- ✓RAG teams working with sparse or incomplete documents
- ✓practitioners optimizing context richness for complex reasoning
Known Limitations
- ⚠YAML configuration complexity grows exponentially with module combinations; 5 modules × 4 parameter sets = 20 trials per node
- ⚠No built-in distributed trial execution — all trials run sequentially on single machine by default
- ⚠Configuration validation happens at runtime, not parse time, so invalid module names only fail during evaluation
- ⚠Node execution is strictly sequential — no parallel branching or conditional routing within a pipeline
- ⚠Module outputs must conform to expected schemas (e.g., reranker expects list of passages, returns ranked list); custom output formats require wrapper modules
- ⚠Adding new node types requires extending the framework's node registry and implementing required interfaces
Requirements
Input / Output
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Repository Details
Last commit: Apr 21, 2026
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AutoRAG: An Open-Source Framework for Retrieval-Augmented Generation (RAG) Evaluation & Optimization with AutoML-Style Automation
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