- In short
- Chunking strategies trade off differently: fixed-size chunking is simple and predictable but can split a single idea across two chunks; semantic chunking splits at topic or meaning boundaries to preserve coherence at the cost of variable chunk sizes; and structural chunking splits along document structure such as headings or sections, which works well for well-formatted source documents. The right strategy depends on the source document's shape and consistency, not a universal default.
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