Chunking Methods for RAG

📰 Medium · Python

Learn 7 chunking methods for RAG pipelines with real code and a retrieval benchmark to improve your retrieval performance

intermediate Published 12 Apr 2026
Action Steps
  1. Apply fixed-size chunking by slicing text every N characters using the `fixed_size_chunking` function
  2. Use sentence-based chunking with the `sentence_transformers` library to split text into individual sentences
  3. Implement sliding window chunking to generate overlapping chunks of text
  4. Utilize a library like `Docling` for PDF-to-text conversion and handle tables, headings, and paragraphs
  5. Evaluate the performance of different chunking methods using a retrieval benchmark
  6. Experiment with other chunking methods such as graph-based or semantic chunking
Who Needs to Know This

Machine learning engineers and NLP specialists building RAG pipelines can benefit from this article to optimize their retrieval performance

Key Insight

💡 Choosing the right chunking method can significantly impact the performance of your RAG pipeline

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