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Page 3 of 3 · 22 posts total
May 3, 2025
Retrieval Augmented Generation (RAG) is a powerful technique for building AI applications that answer questions based on specific knowledge sources. While typical RAG involves indexing data (loading, splitting, storing) and then retrieving and generating responses, traditional methods can **destroy context** when documents are split into chunks. This makes retrieval less accurate. **Contextual Retrieval** addresses this by prepending chunk-specific explanatory context, dramatically improving accuracy. This method, including Contextual Embeddings and Contextual BM25, can reduce the top-20-chunk retrieval failure rate by **49%**. Combining Contextual Retrieval with **Reranking** can further reduce the failure rate by up to **67%**. Other techniques like BM25 can also enhance retrieval by leveraging lexical matching. Implementing Contextual Retrieval involves steps like document loading, splitting, LLM-based contextualization (potentially using prompt caching for cost efficiency), embedding, and storing in a vector store. Tools like LangChain and LangGraph can be used for building these RAG applications. Model selection and effective prompting techniques (like GRWC, ERA, APEX) are also crucial for achieving exceptional AI outputs.
April 24, 2025
Explore the most effective prompt engineering techniques used in real applications across e-commerce, customer support, marketing, finance, and devops. From zero-shot to Chain-of-Thought, this guide makes you fluent in the language of LLMs.
April 16, 2025
Choosing the right chunking strategy can make or break your RAG pipeline. In this guide, we explore fixed, semantic, hybrid, and dynamic chunking techniques with Python examples, integration tips for Pinecone, and advice on how to align chunking with your embedding and LLM models.
April 13, 2025
Quasar Alpha, a newly released stealth foundation model on OpenRouter, quietly offers a groundbreaking 1M-token context window and exceptional coding capabilities. In this blog, we analyze its architecture, benchmarks, use cases, developer feedback, and how it compares to GPT-4, Claude, and Gemini.
March 20, 2025
Learn how to enhance your Retrieval-Augmented Generation (RAG) flow by combining vector search with structured knowledge, ensuring more accurate, fact-based responses in your applications.
February 28, 2025
Learn how I used Cloudflare’s free AI Gateway to track user responses, estimate costs, and optimize my RAG chatbot, with a deep dive into its Evaluations and Guardrails features—all available in Cloudflare’s generous free tier.