How to build a production RAG pipeline in Python (without a vector database)

📰 Dev.to · Ayi NEDJIMI

Learn to build a production-ready RAG pipeline in Python without relying on a vector database, and understand the key considerations for a scalable and efficient implementation

intermediate Published 22 May 2026
Action Steps
  1. Build a basic RAG pipeline using Python and the Hugging Face Transformers library to generate embeddings
  2. Configure a data storage solution using a relational database or a NoSQL database to store the embeddings
  3. Implement a similarity search algorithm using libraries like Faiss or Annoy to efficiently search for similar embeddings
  4. Test and evaluate the performance of the RAG pipeline using metrics like accuracy and latency
  5. Apply optimizations and fine-tuning to the pipeline to improve its scalability and efficiency
Who Needs to Know This

Data scientists and machine learning engineers can benefit from this tutorial to improve their RAG pipeline development skills, and software engineers can apply the concepts to build more efficient data processing systems

Key Insight

💡 You don't need a vector database to build a scalable RAG pipeline, and a well-designed pipeline can achieve similar performance using alternative data storage and search algorithms

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🚀 Build a production-ready RAG pipeline in Python without a vector database! 🤖 Learn how to generate embeddings, implement similarity search, and optimize performance 🚀
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