7 AI Open Source Libraries To Build RAG, Agents & AI Search

What is Retrieval Augmented Generation (RAG)?

Retrieval Augmented Generation (RAG) is an AI technique that combines searching for relevant information with generating responses. It works by first retrieving data from external sources (like documents or databases) and then using this information to create more accurate and context-aware answers. This helps the AI provide better, fact-based responses rather than relying solely on what it was trained on.

How does Retrieval Augmented Generation (RAG) Works?

RAG (Retrieval-Augmented Generation) works by enhancing AI responses with relevant information from external sources. Here’s a concise explanation:

1. When a user asks a question, RAG searches through various data sources (like databases, websites, and documents) to find relevant information.
2. It then combines this retrieved information with the original question to create a more informed prompt.
3. This enhanced prompt is fed into a language model, which generates a response that’s both relevant to the question and enriched with the retrieved information. This process allows the AI to provide more accurate, up-to-date, and context-aware answers by leveraging external knowledge sources alongside its pre-trained capabilities.

How does Retrieval Augmented Generation (RAG) helps the AI Model?

RAG makes the AI more reliable and up-to-date by augmenting its internal knowledge with real-world, external data. RAG also improves an AI model in a few key ways:

1. Access to Up-to-Date Information: RAG retrieves relevant, real-time information from external sources (like documents, databases, or the web). This means the AI can provide accurate responses even when its training data is outdated.
2. Enhanced Accuracy: Instead of relying solely on the AI’s trained knowledge, RAG ensures the model generates responses based on the most relevant data. This makes the answers more accurate and grounded in facts.
3. Better Contextual Understanding: By combining retrieved data with a user’s query, RAG can offer answers that are more context-aware, making the AI’s responses feel more tailored and specific to the situation.
4. Reduced Hallucination: Pure AI models sometimes "hallucinate" or make up information. RAG mitigates this by grounding responses in factual, retrieved data, reducing the likelihood of inaccurate or fabricated information.

7 Open Source Libraries to do Retrieval Augmented Generation

Let's explore some open-source libraries helping you do RAG. These libraries provide the tools and frameworks necessary to implement RAG systems efficiently, from document indexing to retrieval and integration with language models.

1. SWIRL

SWIRL is an open-source AI infrastructure software that powers Retrieval-Augmented Generation (RAG) applications. It enhances AI pipelines by enabling fast and secure searches across data sources without moving or copying data. SWIRL works inside your firewall, ensuring data security while being easy to implement.

What makes it unique:

• No ETL or data movement required.
• Fast and secure AI deployment inside private clouds.
• Seamless integration with over 20+ large language models (LLMs).
• Built for secure data access and compliance.
• Supports data fetching from 100+ applications.

⭐️ SWIRL on GitHub

2. Cognita

Cognita is an open-source framework for building modular, production-ready Retrieval Augmented Generation (RAG) systems. It organizes RAG components, making it easier to test locally and deploy at scale. It supports various document retrievers, embeddings, and is fully API-driven, allowing seamless integration into other systems.

What makes it unique:

• Modular design for scalable RAG systems.
• UI for non-technical users to interact with documents and Q&A.
• Incremental indexing reduces compute load by tracking changes.

⭐️ Cognita on GitHub

3. LLM-Ware

LLM Ware is an open-source framework for building enterprise-ready Retrieval Augmented Generation (RAG) pipelines. It is designed to integrate small, specialized models that can be deployed privately and securely, making it suitable for complex enterprise workflows.

What makes it unique:

• Offers 50+ fine-tuned, small models optimized for enterprise tasks.
• Supports a modular and scalable RAG architecture.
• Can run without a GPU, enabling lightweight deployments.

⭐️ LLMWare on GitHub

4. RAG Flow

RagFlow is an open-source engine focused on Retrieval Augmented Generation (RAG) using deep document understanding. It allows users to integrate structured and unstructured data for effective, citation-grounded question-answering. The system offers scalable and modular architecture with easy deployment options.

What makes it unique:

• Built-in deep document understanding to handle complex data formats.
• Grounded citations with reduced hallucination risks.
• Support for various document types like PDFs, images, and structured data.

⭐️ RAG Flow on GitHub

5. Graph RAG

GraphRAG is a modular, graph-based Retrieval-Augmented Generation (RAG) system designed to enhance LLM outputs by incorporating structured knowledge graphs. It supports advanced reasoning with private data, making it ideal for enterprises and research applications.

What makes it unique:

• Uses knowledge graphs to structure and enhance data retrieval.
• Tailored for complex enterprise use cases requiring private data handling.
• Supports integration with Microsoft Azure for large-scale deployments.

🌟 Graph RAG on GitHub

6. Haystack

Haystack is an open-source AI orchestration framework for building production-ready LLM applications. It allows users to connect models, vector databases, and file converters to create advanced systems like RAG, question answering, and semantic search.

What makes it unique:

• Flexible pipelines for retrieval, embedding, and inference tasks.
• Supports integration with a variety of vector databases and LLMs.
• Customizable with both off-the-shelf and fine-tuned models.

🌟 Haystack on GitHub

7. Storm

STORM is an LLM-powered knowledge curation system that researches a topic and generates full-length reports with citations. It integrates advanced retrieval methods and supports multi-perspective question-asking, enhancing the depth and accuracy of the generated content.

What makes it unique:

• Generates Wikipedia-like articles with grounded citations.
• Supports collaborative human-AI knowledge curation.
• Modular design with support for external retrieval sources.

🌟 Storm on GitHub

Challenges in Retrieval Augmented Generation

Retrieval Augmented Generation (RAG) faces challenges like ensuring data relevance, managing latency, and maintaining data quality. Some challenges are:

• Data relevance: Ensuring the retrieved documents are highly relevant to the query can be difficult, especially with large or noisy datasets.
• Latency: Searching external sources adds overhead, potentially slowing down response times, especially in real-time applications.
• Data quality: Low-quality or outdated data can lead to inaccurate or misleading AI-generated responses.
• Scalability: Handling large-scale datasets and high user traffic while maintaining performance can be complex.
• Security: Ensuring data privacy and handling sensitive information securely is crucial, especially in enterprise settings.

Platforms like SWIRL tackle these issues by not requiring ETL (Extract, Transform, Load) or data movement, ensuring faster and more secure access to data.
With SWIRL, the retrieval and processing happen inside the user’s firewall, which helps maintain data privacy while ensuring relevant, high-quality responses. Its integration with existing large language models (LLMs) and enterprise data sources makes it an efficient solution for overcoming the latency and security challenges of RAG.

Thank you for reading 💜

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Comments

[Arindam Majumder]

Great list

[Saurabh Rai]

Thanks @arindam_1729 😁

[ChiaraLyn]

Hi, thank you for your list!
I would like to share with you another open source project.
It's very interesting and simple to use:
cheshirecat.ai/

[Saurabh Rai]

I know Cheshire Cat. It uses Qdrant under the hood. Y'all went from RAG -> Agentic in the messaging real fast ⚡️

[carban]

These tools looks great, thank you

[Saurabh Rai]

Thanks Carlos, 😁

[David Gonzales]

Cool, there are some good tools in this list.

[Saurabh Rai]

Thanks

[Farrah]

Nice list of projects, STORM looks cool.

[Saurabh Rai]

Yeah, STORM is pretty great. Try it out!

[K Om Senapati]

Good list of RAG-related projects

[Saurabh Rai]

Thanks Om 😁

[Daniel Davis]

TrustGraph is also open source and is a full Agentic GraphRAG platform.

github.com/trustgraph-ai/trustgraph

[Saurabh Rai]

Trustgraph looks pretty great, @jackcolquitt
Infact the data silo part is similar to SWIRL. 😀
Are you up for a conversation anytime? I'd like to know more about this.
[e-mail]

[Dubsmart]

Good!

[Saurabh Rai]

: )

[Suresh Nair]

Thanks, info provided will prove to be very useful, will revisit.

[Ashwin Aravind]

@srbhr - Thanks for putting the list. Very Helpful.
Check out RAGBuilder. github.com/kruxai/ragbuilder
Hyperparameter Tuning on RAG Parameters(chunking strategy: semantic, character etc., chunk size: 1000, 2000 etc.)