How Fixed-Size Chunking Breaks RAG Pipeline Accuracy in Production

Short summary

Standard RAG pipelines fail because fixed-size chunking destroys document structure—table headers, section context, definitions, and cross-references get separated from the content they describe. The author documents real production failures including headless tables and orphaned contract clauses where retrieved chunks are technically correct but contextually misleading. The root cause is architectural: flattening structured documents into uniform text blobs before the AI ever sees them.

• •Fixed-size chunking destroys document structure, causing contextually wrong but technically correct retrievals
• •Common failure patterns include headless tables, orphaned clauses, and lost cross-references
• •The fix requires preserving document organizational intelligence through the chunking pipeline

Generated with AI, which can make mistakes.