How to Setup DeepEval for Fast, Easy, and Powerful LLM Evaluations | Step-by-Step Guide Python

📊 Are you working with Retrieval-Augmented Generation (RAG) systems and want to evaluate their accuracy, hallucination, and relevancy? In this video, I’ll show you **how to evaluate a RAG pipeline using DeepEval**, an open-source Python library built for testing LLM outputs. We’ll use an Excel file as input and analyze your model's performance using **four powerful metrics** from DeepEval: 1️⃣ **Answer Relevancy** – How relevant is the generated answer? 2️⃣ **Contextual Relevancy** – Does it use the provided context properly? 3️⃣ **Contextual Precision** – How precisely does the model use the context without drifting? 4️⃣ **Hallucination Detection** – Is your model hallucinating facts? --- 🧪 **What We Cover in This Video** ✅ Overview of DeepEval and its use cases ✅ How to format your data in Excel for evaluation ✅ Writing a Python script to automatically load, evaluate, and write results ✅ Generating output Excel with scores for each RAG metric ✅ How to use this to improve your LLM applications --- 📂 **Project GitHub Repo** 🔗 GitHub: [https://github.com/Data-Science-Wallah/deepeval](https://github.com/Data-Science-Wallah/deepeval) The repo includes: ✔️ `test_example.py` – the evaluation script ✔️ `deepeval_rag_test.xlsx` – sample input ✔️ `requirements.txt` – dependencies ✔️ `README.md` – full project documentation --- 👨‍🏫 **About This Channel** This channel is run by @DataScienceWallah – your go-to destination for learning data science, machine learning, and production-ready AI tools. Don't forget to **LIKE**, **SHARE**, and **SUBSCRIBE** for more practical AI/ML tutorials 🚀 --- 🔔 **Stay Connected** 👉 Follow me on GitHub: https://github.com/Data-Science-Wallah 👉 More real-world projects coming every week! --- --- #deepeval #rag #retrievalaugmentedgeneration #llmevaluation #deepevalpython #ragpipeline #llmtesting #datasciencewallah #openai #hallucinationdetection #pythonproject #llmdev --- deepeval, rag evaluation, llm evaluation metrics, hallucination detection, context relevancy, python ai project, deepeval tutorial, rag system testing, excel ai evaluation, deep learning python, data science wallah, evaluate chatbot, openai hallucination, deep learning tools, github python ai, prompt evaluation, AI quality check, rag pipeline