December 16, 2025 by Julia Irish

What is RAG in simple terms?

AI tools are evolving quickly, and one of the most important new developments is something called RAG, short for Retrieval-Augmented Generation.

RAG AI is changing how large language models (LLMs) like ChatGPT and Gemini work. It helps these AI models become more accurate, reliable and relevant for businesses that rely on automation.

In simple terms, RAG gives AI access to up-to-date, verified information, so it can generate better answers without “guessing” or relying only on its pre-trained knowledge and data.

This article explains what RAG is, how it works, and how it’s improving AI-driven workflow automation in businesses, in straightforward language, without the technical jargon.

What Is RAG AI?

Retrieval-Augmented Generation (RAG) is AI performance that combines two key capabilities:

  1. Retrieval – Finding the right information from trusted sources. For example, company documents, databases, or knowledge bases.
  2. Generation – Using the information it has found, to create a natural, accurate, and contextually relevant response.

You can think of RAG as a combination of search and intelligence.

Where a traditional language model “remembers” what it learned during training, RAG models actively look things up in real time before responding.

For example, if an ecommerce customer asks a chatbot, “What’s your return policy?”, a traditional AI might give a general answer it learned months ago.  But a RAG-based system will first retrieve the current policy from your internal documentation, then generate an accurate reply using that information.

That’s the “retrieval + generation” process and it’s what makes RAG so powerful, especially for business automation.

Why RAG Matters for Businesses

RAG AI solves the biggest challenges in automation: trust and accuracy.  When this is combined with the speed that AI delivers information at, it’s a game-changer.

When AI models are trained on static data, they don’t automatically know what’s changed or been updated since their last version. This can cause outdated or even incorrect responses.  By adding a retrieval step, RAG ensures that every automated answer is based on verified, current, and relevant information.

Here’s how this helps businesses:

  • More accurate responses. The AI references live, approved data sources rather than relying on its memory.
  • Better compliance and governance. Every output can be traced back to a source document.
  • Less fantasy. The AI no longer invents details when it doesn’t know an answer.
  • Easier updates. You can update documents in your database rather than retraining a model.
  • Faster deployment. RAG systems can plug into your existing datasets, meaning less technical setup.

In short, RAG AI makes automation more reliable and business-ready which is a perfect match for platforms like ThinkAutomation which already focus on integrating data and intelligent workflows.

How RAG Works – A Simple Explanation

Here’s the process happening behind RAG AI in everyday terms:

  1. A question or query arrives.
    For example: “What steps should I follow to pay an invoice?”
  2. The AI searches your connected data sources.
    These could include internal documents, databases, or cloud storage.
  3. It retrieves the most relevant snippets of text or records.
    Only the data that truly applies to the question is pulled in for the answer.
  4. It generates a human-like response using that retrieved information.
    The AI writes the answer, but its facts come directly from your owned content.
  5. It can cite or reference the source/s, offering transparency and trust.

This means the AI is no longer just efficient, it’s grounded in your actual business knowledge and it’s factual.

What Is the Difference Between RAG and Traditional LLM?

A traditional LLM (Large Language Model) is trained on a massive dataset of text and it learns language patterns, general facts and logic. Once training ends, it can only respond based on what it remembers from that dataset.

This is why many standard AI tools sometimes:

  • Produce out-of-date answers
  • Struggle with niche or internal knowledge
  • Provide information and facts that sound right but actually aren’t

By contrast, RAG-enhanced AI combines that language intelligence with live data retrieval.

Here’s a clear comparison of RAG vs Traditional LLM:

FeatureTraditional LLMRAG AI
Knowledge sourceFixed training dataReal-time access to external or internal data
AccuracyCan be lowAlways uses current information
ExplainabilityHard to traceCan reference exact source documents
AdaptabilityNeeds retrainingUpdates instantly with new data
Use caseGeneral conversation Reliable automation and decision support

In short:

  • Traditional LLMs are like a well-read expert who can only recall what they’ve already studied and learnt.
  • RAG AI is like an expert with a built-in research assistant, who checks the realiable and current sources before answering.

This shift from static to dynamic knowledge makes RAG AI far more suitable for business automation and enterprise workflows where accuracy, transparency, and compliance are non-negotiable.

Business Uses of RAG AI in Workflow Automation

RAG AI is already being used in automation platforms and digital operations across industries. Here are a few practical examples:

  • Customer Support: Automatically answered support tickets, using the latest product documentation, service policies, or FAQs.
  • IT and Systems Management: Retrieves troubleshooting guides or technical logs to resolve issues faster.
  • HR Automation: Answers employee queries using current HR policies or training documents.
  • Compliance Reporting: Summarises information from regulatory databases or audit reports to ensure accurate submissions.
  • Sales and Marketing: Generates personalised proposals, quotes or responses using up-to-date product data and written case studies.

 

By combining AI workflow automation tools like ThinkAutomation with RAG-enabled intelligence, businesses can accelerate from “rule-based automation” to context-aware automation where every workflow has access to the knowledge it needs.

The Future of RAG AI

RAG AI is not just a short-term improvement, it’s a step towards more trustworthy and autonomous AI systems.  The next phase of AI will see RAG frameworks integrated with agentic AI, resulting in intelligent systems that can plan, reason, and perform multiple steps automatically while referencing real-time data. We’re not yet at the point where it is packaged into the free agentic AI models that individuals are using daily.

Imagine an automation that not only retrieves the right policy document, but also analyses it, updates a workflow, and alerts a department manager, all independently. That’s powerful.  For businesses, that means less time maintaining systems and more focus on innovation and strategy.

Conclusion

In simple terms, RAG AI makes artificial intelligence both smarter and more dependable.  By retrieving live information before generating an answer, RAG bridges the gap between general AI knowledge and specific, real-world data.

For companies using AI workflow automation tools, this means faster, more accurate, and more transparent automation, with every decision grounded in verified information.

As automation platforms continue to evolve, RAG is becoming a foundational part of enterprise AI.  RAG integration ensures that automation doesn’t just work faster, it works smarter, based on facts you can trust.