RAG - Abrarqasim Blogs

LLM Context Windows: The Anti-Hallucination Prompt That Backfired

My long-context RAG bot kept refusing questions whose answers were right there. The fix was in my anti-hallucination prompt, not my retriever.

pgvector plus HNSW replaced Pinecone on half my side projects. The schema, the index picks, hybrid search with FTS, and where I still reach for…

Real LLM hallucination examples from my own apps, why retrieval doesn't fully fix them, and the cheap code checks I run to catch made-up answers…

After two years of running RAG in production, here are the chunking strategies I actually use, the ones I dropped, and why chunk size is…

Most reasoning LLM failures aren't hallucinations, they're silently skipped steps. Here's what to measure instead of end-to-end answer accuracy.